Rollandet Park Weather Forecast

    • 43
    • 69

    Mostly Sunny

    • 46
    • 76

    Mostly Sunny

    • 49
    • 77

    Mostly Sunny

    • 47
    • 66

    Partly Sunny

    • 48
    • 72

    Mostly Cloudy

    • 41
    • 63

    Partly Sunny

    • 40
    • 63

    Mostly Sunny

Today 23 Sep Upper Snake River Plain

Mostly sunny. Highs 65 to 72. Light and variable Winds. Becoming south up to 10 Mph in the afternoon.

Tonight 23 Sep Upper Snake River Plain

Mostly clear. Lows 41 to 48. Southeast Winds up to 10 Mph. Shifting to northeast after midnight.

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Rollandet Park Temperature Statistics

September Temperature

Idaho Falls Regional Airport (3.1 miles)

  • Lowest 15 September, 2026

    32.6 °F

  • Average September

    61.2 °F

  • Highest 6 September, 2026

    86.6 °F

Climate (2021–2026)

Idaho Falls Regional Airport (3.1 miles)

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  • Average Low 2021–2026

    33.8 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    60 °F
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