| NWS Forecast for: Gallatin Valley Issued by: National Weather Service Great Falls, MT Last Update: 602 PM MDT Tue Sep 8 2026 | |
| Rest Of Tonight: Mostly clear. Lows in the lower 40s. West winds up to 10 mph with gusts to around 25 mph shifting to the south after midnight. Wednesday: Warmer, sunny. Highs in the mid 70s. Southwest winds up to 5 mph increasing to west 10 to 15 mph in the afternoon. Wednesday Night: Partly cloudy. Lows in the mid 40s. South winds up to 10 mph. Thursday: Sunny. Highs in the lower 80s. South winds up to 10 mph shifting to the west with gusts to around 35 mph in the afternoon. Thursday Night: Mostly clear. Lows around 50. Southwest winds 10 to 20 mph with gusts to around 35 mph becoming south up to 10 mph with gusts to around 25 mph after midnight. Friday: Cooler. Mostly sunny with a 20 percent chance of rain showers. Highs around 70. Friday Night: Colder. Partly cloudy in the evening then becoming mostly cloudy. Lows around 40. Saturday: Partly sunny. Highs in the lower 60s. Saturday Night: Breezy. Mostly cloudy with a 50 percent chance of rain showers. Lows in the upper 30s. Sunday: Rain showers likely in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the mid 50s. Chance of precipitation 70 percent. Sunday Night: Mostly cloudy. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Lows in the mid 30s. Chance of showers 50 percent. Monday: Partly sunny in the morning then clearing. Highs in the mid 60s. Monday Night And Tuesday: Mostly clear. Lows in the upper 30s. Highs in the upper 60s. | |
| Zone Forecast: Gallatin Valley | |
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