FNUS75 KMSO 192109 FWSMSO Spot Forecast for MILE MARKER 91 National Weather Service Missoula MT 309 PM MDT Tue Aug 19 2025 Forecast is based on forecast start time of 0600 MDT on August 20. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...On Wednesday, a dry cold front will pass, cooling temperatures but also increasing westerly winds. Elevated fire weather conditions are anticipated due to gusty winds and still relatively dry RHs. Drier air moves into the region on Thursday, and although temperatures will drop further, RHs will likely lower back into the low teens once again. .WEDNESDAY... * Sky/Weather.........Mostly sunny. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Max Temperature.....87-92. * Min Humidity........18-23 percent. * Wind (20 ft)........West 5 to 8 mph, increasing to 8 to 14 mph with gusts to 20 mph in the afternoon. * Mixing Height.......4000 ft agl increasing to 10500 ft agl. * Mixing Winds........West 10 mph. * Precip Amount.......0.00 inches. .WEDNESDAY NIGHT... * Sky/Weather.........Mostly clear. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Min Temperature.....56-61. * Max Humidity........42-47 percent. * Wind (20 ft)........West 5-14 mph becoming light and variable 2-4 mph after sunset. * Mixing Height.......7000 ft agl decreasing to 2000 ft agl early in the evening. * Mixing Winds........West 10 mph. * Precip Amount.......0.00 inches. .THURSDAY... * Sky/Weather.........Mostly sunny. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Max Temperature.....87-92. * Min Humidity........10-15 percent. * Wind (20 ft)........Variable 2-4 mph becoming northwest 5-8 mph in the afternoon. * Mixing Height.......4500 ft agl increasing to 10500 ft agl. * Mixing Winds........West 5 mph. * Precip Amount.......0.00 inches. $$ Forecaster...JennK Requested by...ART TRAHAN Type of request...WILDFIRE .TAG 2520183.1/MSO .DELDT 08/19/25 .FormatterVersion 2.0.0 .EMAIL jack.currie@cskt.org