Porter Park Weather Forecast

    • 36
    • 66

    Mostly Sunny

    • 41
    • 75

    Mostly Sunny

    • 49
    • 80

    Chance Rain

    • 48
    • 78

    Rain Likely

    • 42
    • 72

    Slight Chance Thunderstorms

    • 40
    • 71

    Mostly Sunny

    • 40
    • 74

    Mostly Sunny

Today 14 Sep Upper Snake River Plain

Sunny. Highs 61 to 69. Southwest Winds 10 to 15 Mph.

Tonight 14 Sep Upper Snake River Plain

Mostly clear. Lows 32 to 41. Southwest Winds 10 to 15 Mph. Shifting to east after midnight.

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Porter Park Temperature Statistics

September Temperature

Rexburg, Rexburg-Madison County Airport (0.6 miles)

  • Lowest 8 September, 2026

    36.6 °F

  • Average September

    63 °F

  • Highest 6 September, 2026

    84.7 °F

Climate (2021–2026)

Rexburg, Rexburg-Madison County Airport (0.6 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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