FNUS75 KMSO 271009 FWSMSO Spot Forecast for Sawmill petty 930 National Weather Service Missoula MT 409 AM MDT Mon Oct 27 2025 Forecast is based on ignition time of 0500 MDT on October 27. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...A trough over the region today will keep temperatures cool and humidity high with breezy conditions. The cooler temperatures and snow showers will help keep the humidity high today, but ventilation should be very good. Showers will decrease this afternoon and evening as a ridge of high pressure starts to build over the region, setting up much worse ventilation for tomorrow. .TODAY... * Sky/Weather.........Mostly cloudy. Chance of snow showers. * CWR (> 0.10 Inch)...Less than 10 percent. * Chance Lightning....0 percent. * Max Temperature.....37-42. * Min Humidity........53-58 percent. * Wind (20 ft)........West 8-12 mph. * Mixing Height.......3500 ft agl increasing to 5500 ft agl late in the morning. * Mixing Winds........West 20 mph. * Precip Amount.......0.01 inches. .TONIGHT... * Sky/Weather.........Partly cloudy. Slight chance of snow in the evening. * CWR (> 0.10 Inch)...Less than 10 percent. * Chance Lightning....0 percent. * Min Temperature.....24-29. * Max Humidity........77-82 percent. * Wind (20 ft)........Southwest 5-7 mph in the evening becoming variable 2-4 mph. * Mixing Height.......1000 ft agl. * Mixing Winds........West 10 mph. * Precip Amount.......0.00 inches. .TUESDAY... * Sky/Weather.........Mostly sunny. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Max Temperature.....43-48. * Min Humidity........38-43 percent. * Wind (20 ft)........Variable 1-3 mph. * Mixing Height.......3500 ft agl increasing to 4500 ft agl in the afternoon. * Mixing Winds........South 5 mph. * Precip Amount.......0.00 inches. $$ Forecaster...Leach Requested by...Julian Wearing Type of request...PRESCRIBED .TAG 2524364.0/MSO .DELDT 10/27/25 .FormatterVersion 2.0.0 .EMAIL Julian.Wearing@usda.gov