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Flat Lake, MT Weather Forecast
Flat Lake, MT Weather Forecast Date: 111 AM MDT Wed Sep 23 2026
The area/counties/county of: Sheridan, including the cities of: Plentywood and Medicine Lake.or toggle through each period.
Rest of Tonight... Mostly cloudy. Near steady temperature in the lower 50s. Southeast wind 10 to 15 mph.
Wednesday... Cloudy in the morning, then partly sunny with a slight chance of showers in the afternoon. Highs around 70. Southeast wind 10 to 15 mph. Chance of rain 20%.
Wednesday Night... Partly cloudy in the evening, then clearing. Lows in the upper 40s. South wind around 5 mph.
Thursday... Sunny. Highs in the lower 80s. South wind 5 to 10 mph.
Thursday Night... Mostly clear. Lows in the mid 50s. Southeast wind 5 to 10 mph.
Friday... Mostly sunny and breezy. Highs in the upper 70s.
Friday Night... Mostly cloudy. Lows in the mid 50s.
Saturday... Mostly sunny and breezy. Highs in the lower 70s.
Saturday Night... Mostly clear. Lows in the mid 40s.
Sunday... Mostly sunny. Highs in the mid 60s.
Sunday Night... A chance of showers. Lows in the mid 40s. Highs in the lower 60s.
Monday... A chance of showers. Lows in the mid 40s. Highs in the lower 60s.
Monday Night... A slight chance of showers. Lows in the lower 40s.
POP = Probability of Precipitation
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