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Gollaher Reservoir, MT Weather Forecast
Gollaher Reservoir, MT Weather Forecast Date: 1232 AM MDT Wed Sep 02 2026
The area/counties/county of: Cascade County Below 5000ft, including the city of Great Falls.or toggle through each period.
Rest of Tonight... Windy. Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Some thunderstorms May be severe with damaging winds. Highs in the lower 80s. Lows 47 to 59. South winds 5 to 30 mph with gusts to around 60 mph. Chance of precipitation 50%.
Thursday... Breezy. Mostly sunny. Highs in the upper 70s. Southwest winds 10 to 15 mph increasing to 15 to 25 mph in the afternoon.
Thursday Night... Mostly cloudy in the evening then becoming partly cloudy. A 20% chance of rain showers. Lows in the upper 40s. West winds 5 to 10 mph shifting to the north after midnight.
Friday... Sunny. Highs in the mid 70s. West winds up to 10 mph.
Friday Night... Mostly cloudy with a 50% chance of rain showers. Lows in the upper 40s. Northwest winds 5 to 15 mph shifting to the west up to 5 mph after midnight.
Saturday... Sunny. A 20% chance of rain showers in the morning. Highs in the lower 70s.
Saturday Night... Partly cloudy. A 20% chance of rain showers. Lows in the mid 40s. Highs in the lower 70s.
Sunday... Partly cloudy. A 20% chance of rain showers. Lows in the mid 40s. Highs in the lower 70s.
Sunday Night... Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the evening, then chance of rain showers after midnight. Lows in the upper 40s. Chance of precipitation 60%.
Labor Day... Mostly cloudy. Chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs around 70. Chance of precipitation 70%.
Monday Night... Mostly cloudy. Rain showers likely in the evening, then chance of rain showers after midnight. Lows in the upper 40s. Chance of showers 60%.
Tuesday... Partly sunny with a 50% chance of rain showers. Highs in the upper 60s.
Tuesday Night... Mostly cloudy. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Lows in the upper 40s. Chance of showers 30%.
POP = Probability of Precipitation
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