786 FNUS55 KBYZ 170829 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 229 AM MDT Fri May 17 2024 .DISCUSSION... Spring pattern continues today with a cold front arriving mid day, generating scattered showers and thunderstorms, heaviest east of Billings. Wind gusts to around 50 mph possible with any thunderstorms today along with small hail. Expect strong (45 to 60 mph) post frontal westerly downslope winds will develop this afternoon through this evening from Wheatland county south into the Livingston and Beartooth foothills. Wetting rain chances look lower compared to yesterdays forecast. Saturday will be breezy, cooler, and dry. Another storm system arrives for Sunday and Monday, with a better chances for wetting rain from Billings west. Chambers MTZ123-172215- Gallatin National Forest- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Mostly sunny. Scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......59-69 at 5000 feet...47-57 at 7000 feet. * 24 hr trend.........11 degrees cooler. * Min humidity..........21-31 percent at 5000 feet...26-36 percent at 7000 feet. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Slope/valley.........West winds 10 to 20 mph with gusts to around 35 mph. * Ridgetop.............West 15 to 30 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Less than 10 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......29-39 at 5000 feet...22-32 at 7000 feet. * 24 hr trend.........15 degrees cooler. * Max humidity..........49-59 percent at 5000 feet...57-67 percent at 7000 feet. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Slope/valley.........Southwest winds 10 to 20 mph. Gusts up to 35 mph in the evening. * Ridgetop.............West 15 to 25 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .SATURDAY... * Sky/weather...........Mostly sunny. * Max temperature.......58-67 at 5000 feet...47-57 at 7000 feet. * 24 hr trend.........Unchanged. * Min humidity..........16-21 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 15 mph. * Ridgetop.............West 10 to 20 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly cloudy. Isolated rain showers and snow showers. Lows 36 to 44. Southwest winds 5 to 15 mph. .SUNDAY...Cooler. Mostly cloudy. Snow showers and isolated thunderstorms. Lows 30 to 38. Highs 51 to 61. Northwest winds 5 to 10 mph. .MONDAY...Mostly cloudy. Numerous snow showers and isolated thunderstorms. Lows 31 to 39. Highs 48 to 58. Northwest winds 5 to 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and snow showers. Lows 35 to 42. Highs 53 to 62. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Numerous showers with possible snow showers and thunderstorms. Lows 36 to 43. Highs 54 to 63. .THURSDAY...Mostly cloudy. Showers with possible snow showers and thunderstorms likely. Highs 51 to 60. $$ MTZ124-172215- Wheatland County/Sweet Grass County- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Sunny. Scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......62-67. * 24 hr trend.........9 degrees cooler. * Min humidity..........29-34 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Plains...............Windy in the afternoon. West winds 15 to 25 mph with gusts to around 40 mph in the morning increasing to 25 to 40 mph with gusts to around 55 mph in the afternoon. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Less than 10 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......35-40. * 24 hr trend.........6 degrees cooler. * Max humidity..........50-55 percent. * 24 hr trend.........8 percent drier. * Wind (20 ft) * Plains...............Windy. West winds 20 to 35 mph. Gusts up to 55 mph in the evening decreasing to 45 mph overnight. * LAL...................1...no thunderstorms. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......62-67. * 24 hr trend.........Unchanged. * Min humidity..........16-21 percent. * 24 hr trend.........13 percent drier. * Wind (20 ft) * Plains...............Windy. West winds 15 to 30 mph with gusts to around 40 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly cloudy. Isolated rain showers. Lows 37 to 42. Northwest winds 10 to 20 mph with gusts to around 30 mph. .SUNDAY...Mostly cloudy. Showers and isolated thunderstorms. Lows 33 to 38. Highs 53 to 58. Northwest winds 5 to 15 mph. .MONDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Lows 34 to 39. Highs 54 to 59. Northwest winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 36 to 41. Highs 59 to 64. West winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Lows 37 to 42. Highs 59 to 64. .THURSDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Highs 55 to 60. $$ MTZ125-172215- Stillwater County- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Sunny in the morning, then mostly cloudy with numerous rain showers and isolated thunderstorms in the afternoon. * Max temperature.......66-71. * 24 hr trend.........5 degrees cooler. * Min humidity..........31-36 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph in the morning increasing to 15 to 25 mph with gusts to around 35 mph in the afternoon. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................30 percent. * Haines index..........4. .TONIGHT... * Sky/weather...........Partly cloudy. Scattered rain showers and isolated thunderstorms in the evening. * Min temperature.......34-39. * 24 hr trend.........12 degrees cooler. * Max humidity..........50-55 percent. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Plains...............West winds 15 to 25 mph. Gusts up to 40 mph in the evening decreasing to 30 mph overnight. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......62-67. * 24 hr trend.........4 degrees cooler. * Min humidity..........21-26 percent. * 24 hr trend.........10 percent drier. * Wind (20 ft) * Plains...............Southwest winds 5 to 15 mph in the morning shifting to the southeast in the afternoon. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly cloudy. Isolated rain showers. Lows 40 to 45. West winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Showers and isolated thunderstorms. Lows 34 to 39. Highs 57 to 62. Northwest winds 5 to 15 mph. .MONDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Lows 36 to 41. Highs 54 to 59. West winds 5 to 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 38 to 43. Highs 58 to 63. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Lows 39 to 44. Highs 60 to 65. .THURSDAY...Mostly cloudy. Showers and isolated thunderstorms. Highs 57 to 62. $$ MTZ126-172215- Beartooth Ranger District Custer National Forest- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Mostly sunny. Isolated rain showers in the morning, then scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......64-72 at 5000 feet...54-64 at 7000 feet. * 24 hr trend.........4 degrees cooler. * Min humidity..........22-32 percent at 5000 feet...27-36 percent at 7000 feet. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Slope/valley.........West winds 15 to 25 mph with gusts to around 40 mph. * Ridgetop.............West 15 to 25 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................20 percent. * Haines index..........4. .TONIGHT... * Sky/weather...........Partly cloudy. Scattered thunderstorms and snow showers in the evening. * Min temperature.......34-39 at 5000 feet...25-35 at 7000 feet. * 24 hr trend.........14 degrees cooler. * Max humidity..........62-67 percent. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 15 to 25 mph with gusts to around 40 mph. * Ridgetop.............West 15 to 25 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................Less than 10 percent. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......58-67 at 5000 feet...51-61 at 7000 feet. * 24 hr trend.........3 degrees cooler. * Min humidity..........19-29 percent at 5000 feet...24-34 percent at 7000 feet. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........West winds 10 to 20 mph. * Ridgetop.............West 10 to 20 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Isolated snow showers. Lows 41 to 46. West winds 10 to 20 mph. .SUNDAY...Mostly cloudy. Snow showers and isolated thunderstorms. Lows 35 to 40. Highs 55 to 63. Northwest winds 5 to 15 mph with gusts to around 30 mph. .MONDAY...Mostly cloudy. Snow showers and isolated thunderstorms. Lows 36 to 41. Highs 48 to 56. Northwest winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered snow showers and isolated thunderstorms. Lows 39 to 44. Highs 51 to 59. West winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Numerous snow showers and isolated thunderstorms. Lows 40 to 45. Highs 56 to 64. .THURSDAY...Mostly cloudy. Snow showers and isolated thunderstorms. Highs 54 to 61. $$ MTZ127-172215- Golden Valley County/Musselshell county- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Sunny with isolated rain showers in the morning, then partly sunny with numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......63-68. * 24 hr trend.........4 degrees cooler. * Min humidity..........33-38 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Plains...............West winds 10 to 20 mph with gusts to around 30 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................10 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly cloudy with scattered thunderstorms and rain showers in the evening, then mostly clear overnight. * Min temperature.......38-43. * 24 hr trend.........11 degrees cooler. * Max humidity..........58-63 percent. * 24 hr trend.........8 percent wetter. * Wind (20 ft) * Plains...............West winds 15 to 25 mph with gusts to around 40 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................10 percent. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......60-65. * 24 hr trend.........3 degrees cooler. * Min humidity..........18-23 percent. * 24 hr trend.........15 percent drier. * Wind (20 ft) * Plains...............West winds 15 to 25 mph with gusts to around 35 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly cloudy. Lows 42 to 47. West winds 5 to 15 mph. .SUNDAY...Mostly cloudy. Numerous showers. Lows 38 to 43. Highs 56 to 61. North winds 5 to 15 mph. .MONDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 39 to 44. Highs 53 to 58. Northwest winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 41 to 46. Highs 57 to 62. West winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers. Lows 42 to 47. Highs 59 to 64. .THURSDAY...Mostly cloudy. Numerous showers. Highs 55 to 60. $$ MTZ128-172215- Yellowstone County- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Sunny with isolated rain showers in the morning, then mostly cloudy with numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......69-74. * 24 hr trend.........5 degrees cooler. * Min humidity..........31-36 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............West winds 10 to 20 mph. Gusts up to 30 mph in the afternoon. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................20 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly cloudy with scattered thunderstorms and rain showers in the evening, then mostly clear overnight. * Min temperature.......40-45. * 24 hr trend.........7 degrees cooler. * Max humidity..........54-59 percent. * 24 hr trend.........13 percent drier. * Wind (20 ft) * Plains...............West winds 15 to 25 mph with gusts to around 35 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................Less than 10 percent. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......65-70. * 24 hr trend.........4 degrees cooler. * Min humidity..........19-24 percent. * 24 hr trend.........12 percent drier. * Wind (20 ft) * Plains...............West winds 10 to 20 mph. Gusts up to 30 mph in the morning. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly cloudy. Lows 42 to 47. North winds 5 to 15 mph. .SUNDAY...Mostly cloudy. Numerous showers. Lows 39 to 44. Highs 61 to 66. Northwest winds 5 to 15 mph. .MONDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 40 to 45. Highs 58 to 63. Northwest winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 41 to 46. Highs 62 to 67. West winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 43 to 48. Highs 64 to 69. .THURSDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Highs 61 to 66. $$ MTZ129-172215- Crow Indian Reservation/Bighorn Canyon Rec Area- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Mostly sunny. Scattered rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......62-72 at 5000 feet...56-64 at 7000 feet. * 24 hr trend.........1 degree warmer. * Min humidity..........26-36 percent at 5000 feet...33-38 percent at 7000 feet. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Slope/valley.........Southwest winds 10 to 20 mph. Gusts up to 30 mph in the afternoon. * Ridgetop.............West 15 to 25 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................40 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly cloudy with numerous rain showers and scattered thunderstorms in the evening, then mostly clear overnight. * Min temperature.......32-40 at 5000 feet...29-34 at 7000 feet. * 24 hr trend.........14 degrees cooler. * Max humidity..........65-75 percent at 5000 feet...69-77 percent at 7000 feet. * 24 hr trend.........16 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 15 to 25 mph with gusts to around 35 mph. * Ridgetop.............West 15 to 30 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................40 percent. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......57-67 at 5000 feet...51-57 at 7000 feet. * 24 hr trend.........8 degrees cooler. * Min humidity..........19-29 percent at 5000 feet...27-32 percent at 7000 feet. * 24 hr trend.........9 percent drier. * Wind (20 ft) * Slope/valley.........West winds 10 to 20 mph. Gusts up to 30 mph in the morning. * Ridgetop.............West 15 to 25 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows 40 to 46. Southeast winds 5 to 15 mph. .SUNDAY...Mostly cloudy. Scattered showers. Lows 34 to 41. Highs 54 to 64. Northwest winds 5 to 15 mph. .MONDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Lows 35 to 42. Highs 46 to 56. Northwest winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 38 to 45. Highs 50 to 60. West winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 39 to 47. Highs 55 to 65. .THURSDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Highs 52 to 62. $$ MTZ130-172215- Northern Rosebud/Northern Treasure Counties- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Sunny in the morning, then partly sunny with numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......71-76. * 24 hr trend.........2 degrees cooler. * Min humidity..........36-41 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................50 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly cloudy with numerous rain showers and scattered thunderstorms in the evening, then mostly clear overnight. * Min temperature.......40-45. * 24 hr trend.........8 degrees cooler. * Max humidity..........65-70 percent. * 24 hr trend.........16 percent drier. * Wind (20 ft) * Plains...............West winds 10 to 20 mph with gusts to around 30 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................40 percent. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......66-71. * 24 hr trend.........5 degrees cooler. * Min humidity..........18-23 percent. * 24 hr trend.........18 percent drier. * Wind (20 ft) * Plains...............West winds 10 to 20 mph with gusts to around 30 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows 41 to 46. South winds 5 to 15 mph. .SUNDAY...Mostly cloudy. Scattered showers. Lows 40 to 45. Highs 66 to 71. North winds 5 to 15 mph. .MONDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 39 to 44. Highs 60 to 65. Northwest winds 5 to 15 mph. .TUESDAY...Partly cloudy. Isolated showers. Lows 41 to 46. Highs 62 to 67. Northwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers. Lows 45 to 50. Highs 67 to 72. .THURSDAY...Partly sunny. Scattered showers. Highs 65 to 70. $$ MTZ131-172215- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Mostly sunny. Numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......75-80. * 24 hr trend.........1 degree warmer. * Min humidity..........27-32 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. Gusts up to 30 mph in the afternoon. * Ridgetop.............West 10 to 20 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................20 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly cloudy with rain likely and scattered thunderstorms in the evening, then mostly clear overnight. * Min temperature.......36-41. * 24 hr trend.........10 degrees cooler. * Max humidity..........69-74 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........Northwest winds 15 to 25 mph with gusts to around 35 mph. * Ridgetop.............West 15 to 30 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................40 percent. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......64-69. * 24 hr trend.........11 degrees cooler. * Min humidity..........21-26 percent. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 10 to 20 mph. Gusts up to 30 mph in the morning. * Ridgetop.............West 15 to 25 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows 38 to 43. Southeast winds 5 to 15 mph. .SUNDAY...Mostly cloudy. Scattered showers. Lows 37 to 42. Highs 66 to 71. Northwest winds 5 to 15 mph. .MONDAY...Cooler. Mostly cloudy. Scattered showers. Lows 37 to 42. Highs 55 to 60. Northwest winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 38 to 43. Highs 58 to 63. West winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 40 to 45. Highs 64 to 69. .THURSDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 62 to 67. $$ MTZ132-172215- Custer County- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Sunny in the morning, then partly sunny with numerous rain showers and isolated thunderstorms in the afternoon. * Max temperature.......70-75. * 24 hr trend.........Unchanged. * Min humidity..........36-41 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............West winds 10 to 20 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................50 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......38-43. * 24 hr trend.........11 degrees cooler. * Max humidity..........75-80 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............West winds 10 to 20 mph with gusts to around 35 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................40 percent. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......61-66. * 24 hr trend.........9 degrees cooler. * Min humidity..........21-26 percent. * 24 hr trend.........15 percent drier. * Wind (20 ft) * Plains...............West winds 15 to 25 mph with gusts to around 30 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows 41 to 46. South winds 5 to 15 mph. .SUNDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 40 to 45. Highs 65 to 70. North winds 5 to 15 mph. .MONDAY...Mostly cloudy. Scattered showers. Lows 38 to 43. Highs 57 to 62. Northwest winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Isolated showers. Lows 39 to 44. Highs 57 to 62. Northwest winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers. Lows 42 to 47. Highs 64 to 69. .THURSDAY...Partly sunny. Scattered showers. Highs 61 to 66. $$ MTZ133-172215- Sioux Ranger District Custer National Forest- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Sunny. Scattered thunderstorms and rain showers in the afternoon. * Max temperature.......79-84. * 24 hr trend.........8 degrees warmer. * Min humidity..........24-29 percent. * 24 hr trend.........14 percent drier. * Wind (20 ft) * Plains...............West winds 10 to 20 mph. Gusts up to 30 mph in the afternoon. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................20 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Partly cloudy. Scattered rain showers and isolated thunderstorms in the evening, then isolated showers and thunderstorms overnight. * Min temperature.......40-45. * 24 hr trend.........9 degrees cooler. * Max humidity..........73-78 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............Windy. Northwest winds 15 to 30 mph with gusts to around 40 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................20 percent. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......65-70. * 24 hr trend.........14 degrees cooler. * Min humidity..........19-24 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............West winds 15 to 25 mph with gusts to around 35 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows 40 to 45. South winds 10 to 20 mph. .SUNDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 41 to 46. Highs 71 to 76. Northeast winds 5 to 15 mph. .MONDAY...Cooler. Mostly cloudy. Scattered showers. Lows 39 to 44. Highs 59 to 64. Northwest winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers. Lows 40 to 45. Highs 59 to 64. Northwest winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers. Lows 42 to 47. Highs 65 to 70. .THURSDAY...Partly sunny. Scattered showers. Highs 65 to 70. $$ WYZ274-172215- Sheridan County- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Sunny. Scattered thunderstorms and rain showers in the afternoon. * Max temperature.......75-80. * 24 hr trend.........3 degrees warmer. * Min humidity..........29-34 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........South winds 5 to 10 mph in the morning increasing to west 15 to 25 mph with gusts to around 35 mph in the afternoon. * Ridgetop.............West 15 to 25 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................Zero. * Haines index..........4. .TONIGHT... * Sky/weather...........Mostly cloudy with scattered thunderstorms and rain showers in the evening, then mostly clear overnight. * Min temperature.......33-38. * 24 hr trend.........13 degrees cooler. * Max humidity..........69-74 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 15 to 25 mph. Gusts up to 40 mph in the evening decreasing to 30 mph overnight. * Ridgetop.............West 15 to 25 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................10 percent. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......66-71. * 24 hr trend.........9 degrees cooler. * Min humidity..........24-29 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Slope/valley.........North winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows 38 to 43. Southeast winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 35 to 40. Highs 66 to 71. Northwest winds 5 to 15 mph. .MONDAY...Cooler. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 35 to 40. Highs 54 to 59. Northwest winds 5 to 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 36 to 41. Highs 57 to 62. West winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 38 to 43. Highs 63 to 68. .THURSDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 62 to 67. $$ WYZ284-172215- Bighorn National Forest- 229 AM MDT Fri May 17 2024 .Today... * Sky/weather...........Mostly sunny. Scattered rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......57-62. * 24 hr trend.........2 degrees warmer. * Min humidity..........31-36 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * At Burgess Jct.......Southwest winds 15 to 25 mph with gusts to around 45 mph. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................30 percent. * Haines index..........4. .TONIGHT... * Sky/weather...........Mostly cloudy with snow likely with possible thunderstorms and rain showers in the evening, then mostly clear overnight. * Min temperature.......23-28. * 24 hr trend.........15 degrees cooler. * Max humidity..........72-77 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * At Burgess Jct.......Northwest winds 15 to 25 mph. Gusts up to 40 mph in the evening decreasing to 30 mph overnight. * LAL...................3...9 to 15 strikes/15 min/cell. * CWR...................30 percent. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......50-55. * 24 hr trend.........7 degrees cooler. * Min humidity..........22-27 percent. * 24 hr trend.........9 percent drier. * Wind (20 ft) * At Burgess Jct.......Southwest winds 10 to 20 mph. Gusts up to 30 mph in the afternoon. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows 32 to 37. Southwest winds 5 to 15 mph with gusts to around 30 mph. .SUNDAY...Mostly cloudy. Numerous showers with possible snow showers and thunderstorms. Lows 25 to 30. Highs 52 to 57. Northwest winds 5 to 15 mph with gusts to around 30 mph. .MONDAY...Colder. Mostly cloudy. Snow showers and isolated thunderstorms. Lows 26 to 31. Highs 40 to 45. North winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Numerous snow showers and isolated thunderstorms. Lows 27 to 32. Highs 41 to 46. West winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers, snow showers and isolated thunderstorms. Lows 30 to 35. Highs 47 to 52. .THURSDAY...Mostly cloudy. Numerous showers with possible snow showers and thunderstorms. Highs 47 to 52. $$ weather.gov/billings