Ennis Lake Weather Forecast

    • 36
    • 59

    Partly Sunny

    • 44
    • 62

    Breezy

    • 34
    • 58

    Rain/Snow Likely

    • 30
    • 46

    Rain/Snow Likely

    • 24
    • 41

    Chance Snow

    • 25
    • 41

    Partly Sunny

Today 23 Oct Madison River Valley

Sunny. Highs around 60. Southwest Winds 5 to 10 Mph shifting to the north in the afternoon.

Tonight 23 Oct Madison River Valley

Mostly clear. Lows 30 to 40. South Winds 5 to 15 Mph.

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Ennis Lake Temperature Statistics

October Temperature

Ennis - Big Sky Airport (10.6 miles)

  • Lowest 6 October, 2025

    23 °F

  • Average October

    45.1 °F

  • Highest 10 October, 2025

    71.6 °F

Climate (2020–Present)

Ennis - Big Sky Airport (10.6 miles)

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  • Average Low 2020–2025

    31.4 °F

  • Average 2020–2025

    43.7 °F

  • Average High 2020–2025

    55.6 °F
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