St George Weather Forecast

    • 69
    • 94

    Partly Sunny

    • 69
    • 94

    Mostly Sunny

    • 70
    • 94

    Partly Sunny

    • 65
    • 89

    Partly Sunny

    • 61
    • 82

    Slight Chance Thunderstorms

    • 61
    • 84

    Mostly Sunny

Today 24 Sep Lower Washington County

Partly cloudy. Highs in the lower 90s.

Tonight 24 Sep Lower Washington County

Partly cloudy. Lows in the upper 60s.

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St George Temperature Statistics

September Temperature

St George Municipal Airport (5 miles)

  • Lowest 7 September, 2026

    62.1 °F

  • Average September

    82.6 °F

  • Highest 10 September, 2026

    102.9 °F

Climate (2021–2026)

St George Municipal Airport (5 miles)

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  • Average Low 2021–2026

    53.1 °F

  • Average 2021–2026

    64.8 °F

  • Average High 2021–2026

    76.8 °F
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