FNUS75 KMSO 211304 FWSMSO Spot Forecast for Gateway National Weather Service Missoula MT 704 AM MDT Tue Apr 21 2026 Forecast is based on ignition time of 1000 MDT on April 21. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...Warm, dry weather today will transition to wet weather on Wednesday behind a cold front. Expect minimum RH today in the lower to mid teens with variable, terrain-driven winds. Rain starts Wednesday morning. Total precipitation by Friday morning will be 0.25 to 0.70 inches. .REST OF TODAY... * Sky/Weather.........Mostly sunny. * CWR (> 0.10 Inch)...0 percent. * Max Temperature.....76-81. * Min Humidity........14-19 percent. * Wind (20 ft)........Variable 1-3 mph becoming southwest 3-6 after noon. * Mixing Height.......4500 ft agl increasing to 8000 ft agl in the afternoon. * Mixing Winds........South 5 mph. * Precip Amount.......0.00 inches. .TONIGHT... * Sky/Weather.........Partly cloudy. Slight chance of rain overnight. * CWR (> 0.10 Inch)...Less than 10 percent. * Min Temperature.....48-53. * Max Humidity........68-73 percent. * Wind (20 ft)........Variable 1-3 mph. * Mixing Height.......7500 ft agl decreasing to 1500 ft agl. * Mixing Winds........Northeast 5 mph. * Precip Amount.......0.00 inches. .WEDNESDAY... * Sky/Weather.........Mostly cloudy. Chance of rain in the morning, then rain showers and slight chance of thunderstorms in the afternoon. * CWR (> 0.10 Inch)...80 percent. * Max Temperature.....61-66. * Min Humidity........50-55 percent. * Wind (20 ft)........North around 5 mph shifting to the west 5-10 mph in the afternoon. * Mixing Height.......4000 ft agl. * Mixing Winds........North 10 mph. * Precip Amount.......0.29 inches. $$ Forecaster...Messina Requested by...Raymond Flanagan Type of request...PRESCRIBED .TAG 2611102.0/MSO .DELDT 04/21/26 .FormatterVersion 2.0.0 .EMAIL raymond.flanagan@usda.gov