Thu Feb 20 06:40:13 AM EST 2025 Gallatin and Madison County Mountains and Centennial Mountains- Including Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass 439 AM MST Thu Feb 20 2025 .TODAY...Mostly cloudy. Patchy fog in the morning. Chance of snow in the morning, then slight chance of snow in the afternoon. Highs 25 to 30. Northwest winds 5 to 15 mph. Chance of snow 50 percent. .TONIGHT...Colder. Mostly cloudy with a 20 percent chance of snow in the evening, then partly cloudy after midnight. Lows 10 to 15. West winds 5 to 10 mph. .FRIDAY...Partly cloudy. Highs 25 to 30. Southwest winds 5 to 15 mph. .FRIDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a 20 percent chance of snow after midnight. Patchy blowing snow through the night. Lows 15 to 20. South winds 10 to 15 mph. .SATURDAY...Mostly cloudy. A 20 percent chance of snow in the morning. Highs 25 to 35. South winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy. Lows 15 to 25. .SUNDAY AND SUNDAY NIGHT...Breezy. Mostly cloudy with a 50 percent chance of snow. Highs 30 to 40. Lows 25 to 35. .MONDAY AND MONDAY NIGHT...Mostly cloudy with a 50 percent chance of snow. Highs 35 to 45. Lows 25 to 30. .TUESDAY...Mostly cloudy with a 50 percent chance of snow. Highs 30 to 40. .TUESDAY NIGHT...Colder. Mostly cloudy with a 20 percent chance of snow. Lows 15 to 25. .WEDNESDAY...Partly cloudy with a 20 percent chance of snow. Highs 30 to 40. && TEMPERATURE / PRECIPITATION West Yellowstone 32 6 28 / 20 10 10