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Thunderbolt Lake, MT 7-Day Night Weather Forecast
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Thunderbolt Lake, MT Weather Forecast
Thunderbolt Lake, MT Weather Forecast Date: 336 AM MDT Sat Oct 10 2026
The area/counties/county of: Gallatin And Madison County Mountains And Centennial Mountains, including the cities of: Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass.or toggle through each period.
Today... Breezy. Mostly cloudy. Chance of rain in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs 48 to 56. South winds 10 to 15 mph shifting to the southwest 10 to 25 mph in the afternoon. Gusts up to 45 mph. Chance of precipitation 70%.
Tonight... Colder. Rain, snow and slight chance of thunderstorms in the evening, then snow and rain after midnight. Snow accumulation up to 3 inches. Snow level above 8000 feet. Lows 24 to 34. Northeast winds 5 to 15 mph with gusts to around 45 mph. Chance of precipitation near 100%.
Sunday... Colder. Snow and rain. Snow accumulation up to 5 inches. Near steady temperature around 30. Northeast winds 5 to 10 mph. Gusts up to 40 mph Decreasing to 30 mph in the afternoon. Chance of precipitation near 100%.
Sunday Night... Snow and rain in the evening, then snow after midnight. Snow May be heavy at times after midnight. Heavy snow accumulations. Near steady temperature in the upper 20s. North winds 5 to 15 mph with gusts to around 45 mph. Chance of precipitation near 100%.
Columbus Day... Mostly cloudy. Snow likely in the morning, then chance of rain and slight chance of snow in the afternoon. Light snow accumulations. Snow level 6700 feet. Highs 33 to 43. North winds up to 10 mph with gusts to around 25 mph shifting to the south in the afternoon. Chance of precipitation 70%.
Monday Night... Mostly cloudy with a 20% chance of rain and snow. Lows 23 to 30. Highs 36 to 46.
Tuesday... Mostly cloudy with a 20% chance of rain and snow. Lows 23 to 30. Highs 36 to 46.
Wednesday... Mostly sunny. Highs 37 to 47.
Wednesday Night... Partly cloudy. A 20% chance of rain and snow. Lows 24 to 30. Highs 39 to 49.
Thursday... Partly cloudy. A 20% chance of rain and snow. Lows 24 to 30. Highs 39 to 49.
Thursday Night... Partly cloudy. Lows 23 to 29.
POP = Probability of Precipitation
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