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Simms, MT 7-Day Night Weather Forecast
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Simms, MT Weather Forecast
Simms, MT Weather Forecast Date: 557 PM MDT Sun Sep 06 2026
The area/counties/county of: Cascade County Below 5000ft, including the city of Great Falls.or toggle through each period.
Tonight... Rain showers in the evening. Chance of thunderstorms through the night. Rain showers likely after midnight. Patchy fog late in the night. Some thunderstorms May be severe in the evening. Lows in the lower 50s. North winds up to 15 mph. Chance of precipitation near 100%.
Labor Day... Windy. Rain showers and chance of thunderstorms in the morning, then partly sunny with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Northwest winds 5 to 10 mph with gusts to around 25 mph increasing to west 20 to 30 mph with gusts to around 45 mph in the afternoon. Chance of precipitation near 100%.
Monday Night... Windy. Mostly cloudy with a 50% chance of rain showers. Lows in the upper 40s. Southwest winds 20 to 30 mph with gusts to around 45 mph.
Tuesday... Breezy. Partly sunny with a 50% chance of rain showers. Highs in the mid 60s. West winds 10 to 25 mph.
Tuesday Night... Partly cloudy. Lows in the mid 40s. Southwest winds 5 to 10 mph. Gusts up to 25 mph in the evening.
Wednesday... Warmer, sunny. Highs in the mid 70s.
Wednesday Night... Windy. Mostly clear. Lows in the lower 50s. Highs in the upper 70s.
Thursday... Windy. Mostly clear. Lows in the lower 50s. Highs in the upper 70s.
Thursday Night... Mostly clear in the evening, then mostly cloudy with a 20% chance of rain showers after midnight. Lows in the upper 40s.
Friday... Cooler. Partly sunny. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 20%.
Friday Night... Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain showers after midnight. Lows in the lower 40s. Chance of precipitation 50%.
Saturday... Mostly cloudy with a 50% chance of rain showers. Highs in the upper 50s.
Saturday Night... Mostly cloudy with a 40% chance of rain showers. Lows around 40.
POP = Probability of Precipitation
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