Butte Slough Weather Forecast

    • 40
    • 69

    Slight Chance Thunderstorms

    • 40
    • 70

    Becoming Sunny

    • 42
    • 71

    Mostly Sunny

    • 44
    • 72

    Mostly Sunny

    • 44
    • 75

    Mostly Sunny

    • 42
    • 73

    Mostly Sunny

    • 44
    • 74

    Mostly Sunny

Today 28 Sep Upper Snake River Plain

Sunny. Highs 70 to 77.

Tonight 28 Sep Upper Snake River Plain

Partly cloudy. Colder. Lows 37 to 44. South Winds up to 10 Mph. Shifting to north after midnight.

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Butte Slough Temperature Statistics

September Temperature

Rexburg, Rexburg-Madison County Airport (9.9 miles)

  • Lowest 15 September, 2026

    35.7 °F

  • Average September

    60.9 °F

  • Highest 6 September, 2026

    84.7 °F

Climate (2021–2026)

Rexburg, Rexburg-Madison County Airport (9.9 miles)

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  • Average Low 2021–2026

    34.4 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    58.6 °F
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