Harleyville Weather Forecast

    • 63
    • 85

    Chance Rain Showers

    • 65
    • 85

    Rain Showers Likely

    • 64
    • 83

    Chance Thunderstorms

    • 67
    • 83

    Rain Showers Likely

    • 67
    • 87

    Rain Showers Likely

    • 65
    • 85

    Chance Thunderstorms

Today 24 May Dorchester

Sunny. Highs in the mid 80s. Northeast Winds around 5 Mph, becoming north this afternoon.

Tonight 24 May Dorchester

Mostly clear in the Evening, then partly cloudy with a slight chance of Showers after midnight. Lows in the mid 60s. More humid. Southeast Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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Harleyville Temperature Statistics

May Temperature

Summerville Airport (14.3 miles)

  • Lowest 6 May, 2025

    53.6 °F

  • Average May

    74.1 °F

  • Highest 16 May, 2025

    93.2 °F

Climate (2020–Present)

Summerville Airport (14.3 miles)

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  • Average Low 2020–2025

    56.4 °F

  • Average 2020–2025

    65.9 °F

  • Average High 2020–2025

    76.8 °F
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