FNUS75 KMSO 201923 FWSMSO Spot Forecast for Green Thumb National Weather Service Missoula MT 123 PM MDT Mon Apr 20 2026 Forecast is based on ignition time of 1800 MDT on April 20. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...Tuesday will be the hottest and driest day of the week, with temperatures running around 25 degrees above normal for this time of year. RHs are expected to fall into the mid teens, with generally light winds for most of the day. A slight southwest wind may develop by late afternoon. A cold front will come through early Wednesday morning, cooling temperatures and introducing breezy westerly winds. Precipitation is anticipated beginning Wednesday afternoon. There is still a fairly wide range of precipitation amounts Wednesday, mainly due to the initially convective nature of precipitation. The most likely range (25th to 75th percentile) of 48 hour precipitation ending 6am Friday is 0.50" to 1.00". .TONIGHT... * Sky/Weather.........Partly cloudy. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Min Temperature.....32-37. * Max Humidity........65-70 percent. * Wind (20 ft)........Variable 1-3 mph. * Mixing Height.......6500 ft agl decreasing to 1000 ft agl. * Mixing Winds........South 5 mph. * Precip Amount.......0.00 inches. .TUESDAY... * Sky/Weather.........Partly cloudy. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Max Temperature.....78-83. * Min Humidity........14-19 percent. * Wind (20 ft)........Variable 1-3 mph becoming southwest 5-8 mph with gusts to 12 mph in the afternoon. * Mixing Height.......3000 ft agl increasing to 10000 ft agl. * Mixing Winds........Southeast 10 mph. * Precip Amount.......0.00 inches. .TUESDAY NIGHT... * Sky/Weather.........Partly cloudy. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Min Temperature.....38-43. * Max Humidity........72-77 percent. * Wind (20 ft)........Variable 1-3 mph. * Mixing Height.......6000 ft agl decreasing to 1000 ft agl. * Mixing Winds........Southeast 5 mph. * Precip Amount.......0.00 inches. .WEDNESDAY... * Sky/Weather.........Partly cloudy then becoming cloudy. Chance of rain in the morning, then rain showers and slight chance of thunderstorms in the afternoon. * CWR (> 0.10 Inch)...70 percent. * Chance Lightning....20 percent. * Max Temperature.....58-63. * Min Humidity........47-52 percent. * Wind (20 ft)........Variable 2-4 mph becoming west 5-10 mph with gusts to around 20 mph in the afternoon. * Mixing Height.......3500 ft agl increasing to 5500 ft agl late in the morning. * Mixing Winds........Southwest 15 mph. * Precip Amount.......0.08-0.20 inches. $$ Forecaster...JennK Requested by...Valentijn Hoff Type of request...PRESCRIBED .TAG 2610932.0/MSO .DELDT 04/20/26 .FormatterVersion 2.0.0 .EMAIL valentijn.hoff@firecenter.umt.edu