Summerville Airport Weather Forecast

    • 63
    • 81

    Mostly Sunny

    • 63
    • 83

    Partly Sunny

    • 65
    • 81

    Chance Thunderstorms

    • 65
    • 80

    Chance Thunderstorms

    • 65
    • 82

    Slight Chance Thunderstorms

    • 66
    • 85

    Mostly Sunny

Today 13 Sep Dorchester

Sunny. Highs in the lower 80s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 13 Sep Dorchester

Mostly clear. Lows in the lower 60s. Northeast Winds 5 to 10 Mph.

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Summerville Airport Temperature Statistics

September Temperature

Summerville Airport (0 miles)

  • Lowest 3 September, 2025

    59 °F

  • Average September

    73.7 °F

  • Highest 5 September, 2025

    93.2 °F

Climate (2020–Present)

Summerville Airport (0 miles)

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  • Average Low 2020–2025

    56.5 °F

  • Average 2020–2025

    65.9 °F

  • Average High 2020–2025

    76.8 °F
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