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Louise Lake, MT Weather Forecast
Louise Lake, MT Weather Forecast Date: 452 PM MDT Sat Aug 29 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.
Tonight... Colder. Chance of thunderstorms through the night. Rain showers likely after midnight, then rain showers late in the night. Lows 39 to 45. South winds 5 to 15 mph. Gusts up to 40 mph Decreasing to 30 mph after midnight. Chance of precipitation near 100%.
Sunday... Partly sunny with chance of rain showers and slight chance of thunderstorms in the morning, then sunny in the afternoon. Highs 52 to 62. Southwest winds 5 to 15 mph with gusts to around 30 mph shifting to the west 15 to 20 mph with gusts to around 40 mph in the afternoon. Chance of precipitation 50%.
Sunday Night... Partly cloudy. Lows 34 to 42. Southwest winds up to 15 mph. Gusts up to 35 mph in the evening.
Monday... Warmer, sunny. Highs 62 to 72. South winds up to 15 mph.
Monday Night... Partly cloudy. A 20% chance of rain showers after midnight. Lows 40 to 48. South winds 5 to 10 mph with gusts to around 25 mph.
Tuesday... Mostly sunny. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Highs 62 to 72. Chance of precipitation 20%.
Tuesday Night... Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain showers after midnight. Lows 41 to 49. Chance of precipitation 50%.
Wednesday... Partly sunny. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 59 to 69. Chance of precipitation 40%.
Wednesday Night... Partly cloudy. Lows 38 to 47. Highs 58 to 68.
Thursday... Partly cloudy. Lows 38 to 47. Highs 58 to 68.
Friday... Partly cloudy. A 20% chance of rain showers. Highs 59 to 69. Lows 39 to 47.
Friday Night... Partly cloudy. A 20% chance of rain showers. Highs 59 to 69. Lows 39 to 47.
POP = Probability of Precipitation
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