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Big Lake, MT Weather Forecast
Big Lake, MT Weather Forecast Date: 336 PM MDT Sat Sep 26 2026
The area/counties/county of: Western And Central Chouteau County, including the cities of: Floweree, Carter, and Fort Benton.or toggle through each period.
Tonight... Colder. Mostly clear. Lows in the upper 30s. West winds 10 to 15 mph with gusts to around 35 mph becoming southwest up to 5 mph after midnight.
Sunday... Partly sunny. Highs in the mid 60s. Southeast winds up to 10 mph.
Sunday Night... Mostly cloudy. Lows in the mid 40s. Southeast winds 5 to 10 mph shifting to the southwest after midnight. Gusts up to 25 mph.
Monday... Sunny. Highs around 70. West winds up to 10 mph.
Monday Night... Mostly clear. Lows in the lower 40s. West winds up to 10 mph shifting to the southwest after midnight.
Tuesday... Sunny. Highs in the lower 70s.
Tuesday Night... Partly cloudy. Lows in the lower 50s.
Wednesday... Mostly sunny. A 20% chance of rain in the afternoon. Highs around 70.
Wednesday Night... Partly cloudy. Lows in the mid 40s. Highs in the upper 60s.
Thursday... Partly cloudy. Lows in the mid 40s. Highs in the upper 60s.
Friday... Partly cloudy. Lows in the mid 40s. Highs in the upper 60s.
Friday Night... Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 40s.
POP = Probability of Precipitation
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