Expires:202512221100;;996205 FPUS55 KTFX 212332 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 431 PM MST Sun Dec 21 2025 Spot temperatures and probabilities of measurable precipitation are for tonight, Monday, Monday night, and Tuesday. MTZ323-221100- Canyon Ferry Area- Including the cities of Toston, Townsend, and Winston 431 PM MST Sun Dec 21 2025 .TONIGHT...Cloudy. Rain, light freezing rain likely and slight chance of snow in the evening, then chance of rain and light freezing rain after midnight. No snow accumulation. Near steady temperature in the mid 30s. South winds up to 10 mph. Chance of precipitation 70 percent. .MONDAY...Mostly cloudy. Slight chance of rain and light freezing rain likely in the morning. Highs in the lower 40s. West winds up to 10 mph. Chance of precipitation 70 percent. .MONDAY NIGHT...Mostly cloudy. A 20 percent chance of rain and snow after midnight. Near steady temperature in the lower 30s. South winds up to 10 mph. .TUESDAY...Mostly cloudy. A 20 percent chance of rain in the morning. Highs in the mid 40s. South winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Near steady temperature in the mid 30s. South winds up to 15 mph. .WEDNESDAY...Mostly cloudy. Highs in the upper 40s. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain in the evening, then chance of rain and snow after midnight. Lows in the upper 20s. Chance of precipitation 50 percent. .CHRISTMAS DAY...Mostly sunny with a 20 percent chance of rain and snow. Highs in the lower 40s. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy with a 20 percent chance of rain and snow. Lows around 30. Highs in the lower 40s. .FRIDAY NIGHT...Mostly cloudy. Lows in the mid 20s. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs in the upper 30s. Lows in the mid 20s. .SUNDAY...Mostly cloudy in the morning then becoming mostly sunny. Highs in the lower 40s. $$