St George Weather Forecast

    • 74
    • 94

    Mostly Sunny

    • 76
    • 97

    Mostly Sunny

    • 78
    • 101

    Hot

    • 79
    • 104

    Hot

    • 80
    • 105

    Hot

    • 80
    • 104

    Hot

Today 15 Aug Lower Washington County

Sunny. A 10 percent chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s.

Tonight 15 Aug Lower Washington County

Partly cloudy. Lows in the lower 70s.

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  • Temperature Real-Time

St George Temperature Statistics

August Temperature

St George Municipal Airport (5 miles)

  • Lowest 1 August, 2026

    77 °F

  • Average August

    93.1 °F

  • Highest 1 August, 2026

    109.9 °F

Climate (2021–2026)

St George Municipal Airport (5 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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