Summerville Weather Forecast

    • 63
    • 83

    Sunny

    • 65
    • 85

    Sunny

    • 69
    • 88

    Mostly Sunny

    • 71
    • 92

    Mostly Sunny

    • 72
    • 92

    Partly Sunny

    • 71
    • 91

    Chance Thunderstorms

    • 72
    • 84

    Chance Thunderstorms

Today 2 Sep Dorchester

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

Tonight 2 Sep Dorchester

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

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Summerville Temperature Statistics

September Temperature

Summerville Airport (6.2 miles)

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  • Average September

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Climate (2020–Present)

Summerville Airport (6.2 miles)

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  • Average Low 2020–2025

    56.5 °F

  • Average 2020–2025

    66 °F

  • Average High 2020–2025

    76.9 °F
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