St. George Airport Weather Forecast

    • 17
    • 47

    Becoming Sunny

    • 23
    • 44

    Mostly Sunny

    • 23
    • 48

    Mostly Sunny

    • 25
    • 47

    Mostly Cloudy

    • 21
    • 45

    Partly Sunny

    • 18
    • 38

    Slight Chance Snow Showers

Today 26 Jan Dorchester

Mostly sunny. A chance of Showers this morning. Highs in the upper 40s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 26 Jan Dorchester

Mostly clear. Cooler with Lows around 19. Northwest Winds 5 to 10 Mph.

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St. George Airport Temperature Statistics

January Temperature

Summerville Airport (16.2 miles)

  • Lowest 16 January, 2026

    19.4 °F

  • Average January

    49.5 °F

  • Highest 10 January, 2026

    80.6 °F

Climate (2021–Present)

Summerville Airport (16.2 miles)

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  • Average Low 2021–2026

    56.2 °F

  • Average 2021–2026

    65.8 °F

  • Average High 2021–2026

    76.8 °F
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