Heart Mountain Weather Forecast

    • 22
    • 36

    Decreasing Clouds

    • 24
    • 33

    Partly Sunny

    • 27
    • 37

    Partly Sunny

    • 30
    • 37

    Slight Chance Rain/Snow

    • 26
    • 38

    Partly Sunny

    • 28
    • 35

    Partly Sunny

Today 29 Oct Beaverhead/Lemhi Highlands

Partly sunny. Not as cool. Highs 42 to 49.

Tonight 29 Oct Beaverhead/Lemhi Highlands

Mostly clear. Lows 17 to 27.

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Heart Mountain Temperature Statistics

October Temperature

Rexburg, Rexburg-Madison County Airport (57.2 miles)

  • Lowest 21 October, 2025

    27 °F

  • Average October

    46.2 °F

  • Highest 9 October, 2025

    77 °F

Climate (2020–Present)

Rexburg, Rexburg-Madison County Airport (57.2 miles)

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  • Average Low 2020–2025

    33.5 °F

  • Average 2020–2025

    45.5 °F

  • Average High 2020–2025

    57.6 °F
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