Heise Weather Forecast

    • 19
    • 24

    Areas Freezing Fog

    • 22
    • 28

    Areas Freezing Fog

    • 20
    • 27

    Partly Sunny

    • 10
    • 30

    Partly Sunny

    • 11
    • 25

    Mostly Sunny

    • 17
    • 29

    Partly Sunny

    • 20
    • 33

    Mostly Cloudy

Today 20 Jan Upper Snake River Plain

Decreasing Clouds. Patchy freezing fog through the day. Highs 25 to 35. South Winds up to 10 Mph.

Tonight 20 Jan Upper Snake River Plain

Mostly cloudy. Areas of freezing fog. Lows 13 to 20. Light and variable Winds.

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Heise Temperature Statistics

January Temperature

Rexburg, Rexburg-Madison County Airport (14.3 miles)

  • Lowest 11 January, 2026

    14 °F

  • Average January

    29.7 °F

  • Highest 3 January, 2026

    41 °F

Climate (2021–Present)

Rexburg, Rexburg-Madison County Airport (14.3 miles)

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  • Average Low 2021–2026

    34 °F

  • Average 2021–2026

    46 °F

  • Average High 2021–2026

    58 °F
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