Threemile Reservoir Weather Forecast

    • 36
    • 59

    Mostly Sunny

    • 41
    • 64

    Sunny

    • 43
    • 68

    Mostly Sunny

    • 43
    • 67

    Rain Showers Likely

    • 35
    • 56

    Chance Rain Showers

    • 39
    • 62

    Partly Sunny

    • 43
    • 66

    Partly Sunny

Today 1 May Beaverhead/Lemhi Highlands

Sunny. Highs 56 to 64.

Tonight 1 May Beaverhead/Lemhi Highlands

Mostly clear. Lows 30 to 40.

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Threemile Reservoir Temperature Statistics

May Temperature

Rexburg, Rexburg-Madison County Airport (40.4 miles)

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  • Average May

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Climate (2020–Present)

Rexburg, Rexburg-Madison County Airport (40.4 miles)

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  • Average Low 2020–2025

    33.4 °F

  • Average 2020–2025

    45.4 °F

  • Average High 2020–2025

    57.3 °F
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