Threemile Reservoir Weather Forecast

    • 35
    • 64

    Decreasing Clouds

    • 27
    • 51

    Mostly Sunny

    • 38
    • 58

    Partly Sunny

    • 41
    • 65

    Slight Chance Thunderstorms

    • 40
    • 65

    Partly Sunny

    • 38
    • 61

    Slight Chance Thunderstorms

Today 4 May Beaverhead/Lemhi Highlands

Mostly sunny. Highs 60 to 69.

Tonight 4 May Beaverhead/Lemhi Highlands

Mostly cloudy with a slight chance of rain in the evening. Then partly cloudy after midnight. Colder. Lows 32 to 41.

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Threemile Reservoir Temperature Statistics

May Temperature

Rexburg, Rexburg-Madison County Airport (40.4 miles)

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Climate (2021–Present)

Rexburg, Rexburg-Madison County Airport (40.4 miles)

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  • Average Low 2021–2026

    34.4 °F

  • Average 2021–2026

    46.4 °F

  • Average High 2021–2026

    58.5 °F
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