Rat Lake Weather Forecast

    • 28
    • 43

    Chance Snow

    • 24
    • 52

    Chance Rain/Snow

    • 32
    • 48

    Partly Sunny

    • 25
    • 55

    Rain

    • 23
    • 40

    Chance Snow

    • 25
    • 45

    Partly Sunny

Today 16 Oct Gallatin and Madison County Mountains and Centennial Mountains

Mostly cloudy. Patchy fog in the morning. Chance of snow and rain in the Morning, then chance of rain and slight chance of snow in the afternoon. Highs 35 to 45. Northwest Winds 5 to 10 Mph. Chance of precipitation 50 percent.

Tonight 16 Oct Gallatin and Madison County Mountains and Centennial Mountains

Partly cloudy. Lows 25 to 30. Southwest Winds 5 to 15 Mph.

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Rat Lake Temperature Statistics

October Temperature

Ennis - Big Sky Airport (24.9 miles)

  • Lowest 6 October, 2025

    23 °F

  • Average October

    46.9 °F

  • Highest 10 October, 2025

    71.6 °F

Climate (2020–Present)

Ennis - Big Sky Airport (24.9 miles)

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  • Average Low 2020–2025

    31.3 °F

  • Average 2020–2025

    43.7 °F

  • Average High 2020–2025

    55.6 °F
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