St. George Airport Weather Forecast

    • 55
    • 78

    Becoming Sunny

    • 58
    • 81

    Mostly Sunny

    • 58
    • 84

    Partly Sunny

    • 60
    • 83

    Chance Rain Showers

    • 60
    • 83

    Chance Rain Showers

    • 60
    • 84

    Chance Rain Showers

Today 30 Mar Dorchester

Sunny. Highs in the upper 70s. East Winds around 5 Mph, becoming south this afternoon.

Tonight 30 Mar Dorchester

Mostly clear. Lows in the mid 50s. Southeast Winds 5 to 10 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St. George Airport Temperature Statistics

March Temperature

Summerville Airport (16.2 miles)

  • Lowest 18 March, 2026

    32 °F

  • Average March

    63.5 °F

  • Highest 11 March, 2026

    89.6 °F

Climate (2021–Present)

Summerville Airport (16.2 miles)

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  • Average Low 2021–2026

    55.9 °F

  • Average 2021–2026

    65.6 °F

  • Average High 2021–2026

    76.7 °F
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