Threemile Reservoir Weather Forecast

    • 29
    • 41

    Increasing Clouds

    • 27
    • 48

    Partly Sunny

    • 28
    • 37

    Mostly Cloudy

    • 27
    • 36

    Mostly Cloudy

    • 28
    • 41

    Partly Sunny

    • 31
    • 45

    Partly Sunny

Today 3 Nov Beaverhead/Lemhi Highlands

Mostly sunny. Areas of fog in the morning. Highs 40 to 49.

Tonight 3 Nov Beaverhead/Lemhi Highlands

Mostly cloudy. Lows 24 to 34.

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Threemile Reservoir Temperature Statistics

November Temperature

Rexburg, Rexburg-Madison County Airport (40.4 miles)

  • Lowest 1 November, 2026

    43 °F

  • Average November

    44.8 °F

  • Highest 1 November, 2026

    48 °F

Climate (2021–2026)

Rexburg, Rexburg-Madison County Airport (40.4 miles)

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  • Average Low 2021–2026

    34.5 °F

  • Average 2021–2026

    46.6 °F

  • Average High 2021–2026

    58.7 °F
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