Colorado River Headwaters (COZ205) - Fire Weather Forecast

Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

COZ205-072315- COZ205-072315- Colorado River Headwaters- 109 AM MDT Fri Aug 7 2026 Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 109 AM MDT Fri Aug 7 2026 .DISCUSSION...High pressure remains in control overhead and this will keep hot and dry conditions in place through the weekend. Overall winds will remain light limiting critical fire weather conditions to localized areas. Moisture slowly increases Sunday into next week which will lead to an uptick in daily afternoon thunderstorm activity and slightly cooler temperatures. ...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS OR THUNDERSTORMS... ...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL... .TODAY... Sky/weather.........Mostly sunny (10-20%). Patchy smoke. Chc of lightning....0 percent. Max temperature.....85-95 F. Min humidity........5-10%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....Northwest 10 to 15 mph decreasing to 5 to 10 mph in the afternoon. Mixing Height.......500 ft AGL until 0900. 15500 ft AGL after 1000. Transport Winds.....Northeast 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 0900. Very good after 1200. .TONIGHT... Sky/weather.........Mostly clear (20-30%). Patchy smoke until 2400. Chc of lightning....0 percent. Min temperature.....54-64 F. Max humidity........25-35%. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. 15K Ft MSL Winds....Northwest 10 to 15 mph. Mixing Height.......11500 ft AGL until 2000, then 500 ft AGL. Transport Winds.....North 5 to 10 mph until 2400, then southeast. Smoke dispersal.....Good until 2100, then poor. .SATURDAY... Sky/weather.........Mostly sunny (20-30%) until 1200, then partly cloudy (40-50%). Patchy smoke. Chc of lightning....0 percent. Max temperature.....84-94 F. Min humidity........7-12%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....Northwest 10 to 15 mph. Mixing Height.......2000 ft AGL until 1000. 15000 ft AGL after 1100. Transport Winds.....Southwest 5 mph until 1200, then northwest 10 to 15 mph. Smoke dispersal.....Poor until 0900. Excellent after 1200. .FORECAST FOR DAY 3 THROUGH 7... .SUNDAY...Partly cloudy. Patchy smoke. Isolated showers and thunderstorms. Lows 52-62. Highs 80-90. Winds less than 15 mph. .MONDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 52-62. Highs 79-89. Winds less than 15 mph. .TUESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 50-60. Highs 78-88. Winds less than 15 mph. .WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 50-60. Highs 76-86. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 49-59. Highs 73-83.