St. George Airport Weather Forecast

    • 68
    • 90

    Mostly Sunny

    • 71
    • 94

    Partly Sunny

    • 68
    • 93

    Chance Rain Showers

    • 66
    • 90

    Partly Sunny

    • 66
    • 92

    Slight Chance Thunderstorms

    • 67
    • 90

    Mostly Cloudy

Today 15 May Dorchester

Sunny. Highs in the lower 90s. Southwest Winds 5 to 10 Mph.

Tonight 15 May Dorchester

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 60s. Southwest Winds 5 to 10 Mph.

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St. George Airport Temperature Statistics

May Temperature

Summerville Airport (16.2 miles)

  • Lowest 6 May, 2025

    53.6 °F

  • Average May

    70.6 °F

  • Highest 9 May, 2025

    86 °F

Climate (2020–Present)

Summerville Airport (16.2 miles)

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  • Average Low 2020–2025

    56.4 °F

  • Average 2020–2025

    65.8 °F

  • Average High 2020–2025

    76.8 °F
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