Harrisburg Junction Weather Forecast

    • 71
    • 101

    Hot

    • 74
    • 102

    Hot

    • 75
    • 99

    Hot

    • 72
    • 96

    Hot

    • 65
    • 92

    Mostly Sunny

    • 67
    • 91

    Mostly Sunny

    • 66
    • 89

    Sunny

Today 9 Sep Lower Washington County

Sunny. Highs around 103.

Tonight 9 Sep Lower Washington County

Mostly clear. Lows in the lower 70s.

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Harrisburg Junction Temperature Statistics

September Temperature

St George Municipal Airport (9.3 miles)

  • Lowest 7 September, 2026

    62.1 °F

  • Average September

    80.1 °F

  • Highest 5 September, 2026

    97 °F

Climate (2021–2026)

St George Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    53 °F

  • Average 2021–2026

    64.8 °F

  • Average High 2021–2026

    76.8 °F
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