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Thunder Lake, MT 7-Day Night Weather Forecast
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Thunder Lake, MT Weather Forecast
Thunder Lake, MT Weather Forecast Date: 404 PM MDT Sat Sep 19 2026
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Tonight... Rain showers likely early in the evening, then chance of rain showers in the late evening and overnight. Patchy fog through the night. Lows in the upper 30s. Northeast winds 5 to 10 mph. Chance of precipitation 70%.
Sunday... Patchy fog in the morning. Mostly cloudy with a 20% chance of rain showers. Highs in the upper 40s. Northwest winds 5 to 10 mph.
Sunday Night... Mostly cloudy. Lows in the upper 30s. Northeast winds 5 to 10 mph in the evening becoming light overnight.
Monday... Decreasing clouds. Highs in the mid 50s. Southwest winds 5 to 10 mph.
Monday Night... Mostly clear. Lows in the lower 40s. South winds 5 to 10 mph.
Tuesday... Sunny. Highs in the upper 50s.
Tuesday Night... Partly cloudy. Lows in the upper 40s.
Wednesday... Decreasing clouds. Highs in the upper 50s.
Wednesday Night... Mostly clear. Lows in the mid 40s.
Thursday... Sunny. Highs in the lower 60s.
Thursday Night... Mostly clear. Lows in the upper 40s.
Friday... Mostly sunny. Highs in the lower 60s.
Friday Night... Partly cloudy. A 20% chance of rain showers overnight. Lows in the mid 40s.
POP = Probability of Precipitation
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