Weather WorldGreat Falls Intl, MT 7-Day Night Weather Forecast
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Great Falls Intl, MT Weather Forecast
Great Falls Intl, MT Weather Forecast Date: 837 PM MDT Wed Aug 26 2026
The area/counties/county of: Cascade County Below 5000ft, including the city of Great Falls.or toggle through each period.
Rest of Tonight... Mostly cloudy early in the evening then becoming partly cloudy. Patchy smoke early in the evening. A 20% chance of thunderstorms early in the evening. Lows in the upper 50s. South winds 5 to 10 mph.
Thursday... Mostly sunny. A 20% chance of thunderstorms in the afternoon. Highs in the lower 90s. South winds 5 to 15 mph with gusts to around 30 mph.
Thursday Night... Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the upper 50s. South winds 10 to 15 mph. Chance of precipitation 50%.
Friday... Mostly sunny. Highs in the mid 80s. Southwest winds up to 15 mph. Gusts up to 30 mph in the afternoon.
Friday Night... Mostly cloudy. A 20% chance of rain showers after midnight. Lows in the upper 50s. Southwest winds 5 to 15 mph.
Saturday... Partly sunny. Chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 70%.
Saturday Night... Cooler. Rain showers likely and chance of thunderstorms in the evening, then rain showers likely and slight chance of thunderstorms after midnight. Lows in the upper 40s. Chance of precipitation 70%.
Sunday... Partly sunny. Rain showers likely in the morning, then chance of rain showers in the afternoon. Highs in the upper 60s. Chance of showers 60%.
Sunday Night... Mostly cloudy with chance of rain showers in the evening, then partly cloudy with slight chance of rain showers after midnight. Lows in the mid 40s. Chance of showers 40%.
Monday... Sunny. A 20% chance of rain showers in the morning. Highs in the upper 70s.
Monday Night... Mostly clear. Lows around 50. Highs in the lower 80s.
Tuesday... Mostly clear. Lows around 50. Highs in the lower 80s.
Tuesday Night... Mostly cloudy. A 20% chance of rain showers in the evening. Lows in the lower 50s.
POP = Probability of Precipitation
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