Montpelier Reservoir Weather Forecast

    • 22
    • 40

    Decreasing Clouds

    • 26
    • 51

    Mostly Sunny

    • 31
    • 55

    Partly Sunny

    • 28
    • 54

    Mostly Sunny

    • 32
    • 54

    Partly Sunny

    • 27
    • 49

    Rain/Snow Likely

Today 20 Oct Bear Lake Valley

Sunny, cooler. Highs 42 to 49.

Tonight 20 Oct Bear Lake Valley

Mostly clear. Lows 20 to 30.

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Montpelier Reservoir Temperature Statistics

October Temperature

Afton WY (26.7 miles)

  • Lowest 13 October, 2025

    19.4 °F

  • Average October

    43.3 °F

  • Highest 9 October, 2025

    71.6 °F

Climate (2020–Present)

Afton WY (26.7 miles)

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  • Average Low 2020–2025

    25.4 °F

  • Average 2020–2025

    38.7 °F

  • Average High 2020–2025

    51.4 °F
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