Expires:202512292300;;434177 FPUS55 KTFX 291138 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 437 AM MST Mon Dec 29 2025 Spot temperatures and probabilities of measurable precipitation are for today, tonight, and Tuesday. MTZ312-292300- Cascade County below 5000ft- Including the city of Great Falls 438 AM MST Mon Dec 29 2025 .TODAY...Sunny. Highs in the lower 40s. Southwest winds 10 to 20 mph with gusts to around 35 mph. .TONIGHT...Partly cloudy. Lows in the upper 20s. Southwest winds 5 to 15 mph with gusts to around 30 mph. .TUESDAY...Sunny. Highs in the mid 40s. Southwest winds 5 to 15 mph with gusts to around 30 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the lower 30s. Southwest winds 10 to 15 mph with gusts to around 30 mph. .WEDNESDAY...Mostly sunny. Highs around 50. Southwest winds 5 to 15 mph. .WEDNESDAY NIGHT...Partly cloudy. Lows around 30. .NEW YEARS DAY THROUGH SATURDAY...Mostly cloudy. Highs in the upper 40s. Lows in the mid 30s. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. Lows in the upper 20s. Highs in the mid 40s. && TEMPERATURE / PRECIPITATION Great Falls Arpt 41 28 46 / 0 0 0 $$