Expires:202512092300;;271057 FPUS55 KTFX 091022 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 322 AM MST Tue Dec 9 2025 Spot temperatures and probabilities of measurable precipitation are for today, tonight, and Wednesday. MTZ314-092300- Fergus County below 4500ft- Including the cities of Hilger and Lewistown 322 AM MST Tue Dec 9 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... .TODAY...Windy. Mostly cloudy until late afternoon then becoming mostly sunny. Chance of rain in the morning. Chance of snow late in the morning, then slight chance of rain and snow early in the afternoon. Highs in the upper 40s. West winds 25 to 35 mph with gusts to around 80 mph becoming northwest 15 to 25 mph with gusts to around 40 mph in the afternoon. Chance of precipitation 50 percent. .TONIGHT...Colder. Partly cloudy in the evening, then snow after midnight. Snow accumulation up to 1 inch. Lows in the upper 20s. West winds 5 to 15 mph with gusts to around 30 mph shifting to the south 5 to 10 mph after midnight. Chance of snow near 100 percent. .WEDNESDAY...Snow and chance of rain in the morning, then chance of rain in the afternoon. Snow accumulation up to 1 inch. Total snow accumulation up to 2 inches. Highs in the upper 40s. South winds 10 to 15 mph shifting to the west 10 to 20 mph in the afternoon. Gusts up to 35 mph. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Cloudy. Chance of rain in the evening, then chance of rain and slight chance of snow after midnight. Lows in the lower 30s. West winds 10 to 20 mph with gusts to around 40 mph. Chance of precipitation 50 percent. .THURSDAY...Snow and rain likely in the morning, then snow likely in the afternoon. Moderate snow accumulations. Snow level 3300 feet. Highs in the lower 40s. Temperatures falling into the upper teens in the afternoon. Northwest winds 10 to 15 mph with gusts to around 30 mph. Chance of precipitation 70 percent. .THURSDAY NIGHT AND FRIDAY...Much colder. Snow likely. Moderate snow accumulations. Lows around 1. Highs 8 to 14. Chance of snow 70 percent. .FRIDAY NIGHT...Cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows around 2 below. Chance of snow 50 percent. .SATURDAY...Mostly cloudy. A 40 percent chance of snow in the morning. Highs 10 to 20. .SATURDAY NIGHT AND SUNDAY...Not as cool. Mostly cloudy. Lows 1 to 9. Highs in the upper 30s. .SUNDAY NIGHT AND MONDAY...Mostly cloudy. Lows in the lower 20s. Highs 37 to 43. && TEMPERATURE / PRECIPITATION Lewistown 46 24 48 / 60 40 90 $$