St George Weather Forecast

    • 41
    • 67

    Sunny

    • 37
    • 68

    Sunny

    • 39
    • 66

    Mostly Sunny

    • 37
    • 66

    Mostly Sunny

    • 39
    • 65

    Mostly Sunny

    • 39
    • 66

    Partly Sunny

Today 11 Dec Lower Washington County

Sunny. Highs in the upper 60s.

Tonight 11 Dec Lower Washington County

Clear. Lows around 40.

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St George Temperature Statistics

December Temperature

St George Municipal Airport (5 miles)

  • Lowest 5 December, 2025

    28.9 °F

  • Average December

    42.7 °F

  • Highest 6 December, 2025

    59 °F

Climate (2020–Present)

St George Municipal Airport (5 miles)

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  • Average Low 2020–2025

    52.5 °F

  • Average 2020–2025

    64.3 °F

  • Average High 2020–2025

    76.4 °F
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