Mon May 20 17:52:11 EDT 2024 Grand Canyon Country (Fire Weather Zone 106)- Including the cities of Grand Canyon Village, Supai, and North Rim 251 PM MST Mon May 20 2024 .REST OF TODAY... Sky/weather.........Partly cloudy. Max temperature.....79-89 at the River...66-76 at the Rim. 24 hr trend......6 degrees cooler. Min humidity........8 percent at the River...9-14 percent at the Rim. 24 hr trend......Little change. 20-foot winds.......Breezy. Southwest winds 15 to 25 mph with gusts up to 40 mph. Free winds..........Southwest 35 to 45 mph. Haines Index........5 or moderate. PoP.................0 percent. LAL.................1. Mixing height.......11900 ft AGL. Transport winds.....Southwest around 35 knots. Max Ventilation.....Excellent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....49-56 at the River...35-45 at the Rim. 24 hr trend......Little change. Max humidity........31-41 percent at the River...32-52 percent at the Rim. 24 hr trend......15 percent wetter. 20-foot winds.......Southwest winds 10 to 15 mph. Free winds..........West 30 to 40 mph decreasing to 20 to 30 mph after midnight. Haines Index........4 or low. PoP.................0 percent. LAL.................1. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....78-88 at the River...63-73 at the Rim. 24 hr trend......Little change. Min humidity........11 percent at the River...12-17 percent at the Rim. 24 hr trend......Little change. 20-foot winds.......West winds 10 to 15 mph. Gusts up to 20 mph in the afternoon. Free winds..........West 15 to 25 mph. Haines Index........4 or low. PoP.................0 percent. LAL.................1. Mixing height.......4200 ft AGL increasing to 10600 ft AGL in the afternoon. Transport winds.....West 10 to 15 knots. Max Ventilation.....Excellent. .TUESDAY NIGHT... Sky/weather.........Mostly clear. Min temperature.....48-54 at the River...34-44 at the Rim. 24 hr trend......Little change. Max humidity........27 percent at the River...28-38 percent at the Rim. 24 hr trend......12 percent drier. 20-foot winds.......Northwest winds around 10 mph in the evening becoming light. Free winds..........West 5 to 15 mph. Haines Index........4 or low. PoP.................0 percent. LAL.................1. .WEDNESDAY... Sky/weather.........Mostly sunny. Max temperature.....81-91 at the River...67-77 at the Rim. 24 hr trend......Little change. Min humidity........7 percent at the River...10 percent at the Rim. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west 10 to 15 mph in the afternoon. Free winds..........Southwest 5 to 15 mph increasing to 15 to 25 mph in the afternoon. Haines Index........5 or moderate. PoP.................0 percent. LAL.................1. Mixing height.......3900 ft AGL increasing to 10600 ft AGL in the afternoon. Transport winds.....Southeast around 5 knots increasing to southwest around 15 knots in the afternoon. Max Ventilation.....Excellent. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...Mostly clear. Highs 80 to 90. Southwest winds 10 to 15 mph. Gusts up to 30 mph. .FRIDAY...Mostly clear. Highs 79 to 89. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. .SATURDAY...Mostly clear. Highs 78 to 88. Southwest winds 10 to 15 mph. Gusts up to 25 mph in the afternoon.