Heart Mountain Weather Forecast

    • 37
    • 55

    Increasing Clouds

    • 36
    • 47

    Rain Showers Likely

    • 40
    • 53

    Mostly Sunny

    • 41
    • 58

    Sunny

    • 43
    • 58

    Mostly Sunny

    • 41
    • 57

    Chance Rain Showers

Today 14 Sep Beaverhead/Lemhi Highlands

Mostly sunny. Highs 65 to 72.

Tonight 14 Sep Beaverhead/Lemhi Highlands

Mostly cloudy. A slight chance of Showers and Thunderstorms in the evening. Then a chance of rain Showers after midnight. Lows 36 to 46.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Heart Mountain Temperature Statistics

September Temperature

Rexburg, Rexburg-Madison County Airport (57.2 miles)

  • Lowest 6 September, 2025

    46.9 °F

  • Average September

    65.3 °F

  • Highest 2 September, 2025

    90 °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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