Upper Red Rock Lake Weather Forecast

    • 23
    • 46

    Rain

    • 21
    • 40

    Becoming Sunny

    • 24
    • 45

    Mostly Sunny

    • 29
    • 52

    Partly Sunny

    • 27
    • 51

    Partly Sunny

    • 31
    • 48

    Mostly Cloudy

    • 26
    • 41

    Snow

Today 19 Oct Gallatin and Madison County Mountains and Centennial Mountains

Windy. Slight chance of rain late in the Morning, then rain and slight chance of snow in the afternoon. Snow accumulation of 2 to 5 Inches. Snow level above 8000 feet. Highs 40 to 50. Southwest Winds 20 to 30 Mph. Chance of precipitation near 100 percent.

Tonight 19 Oct Gallatin and Madison County Mountains and Centennial Mountains

Colder. Mostly cloudy. Chance of snow in the Evening, then slight chance of snow after midnight. Lows 20 to 25. West Winds 10 to 20 Mph. Chance of snow 50 percent.

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Upper Red Rock Lake Temperature Statistics

October Temperature

West Yellowstone (29.8 miles)

  • Lowest 7 October, 2025

    19.4 °F

  • Average October

    40.6 °F

  • Highest 9 October, 2025

    69.8 °F

Climate (2020–Present)

West Yellowstone (29.8 miles)

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  • Average Low 2020–2025

    33.6 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    66 °F
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