Harleyville Weather Forecast

    • 45
    • 75

    Sunny

    • 45
    • 72

    Mostly Sunny

    • 48
    • 70

    Partly Sunny

    • 51
    • 70

    Chance Rain Showers

    • 52
    • 66

    Chance Rain Showers

    • 50
    • 66

    Chance Rain Showers

Today 23 Oct Dorchester

Sunny. Highs in the mid 70s. North Winds around 5 Mph.

Tonight 23 Oct Dorchester

Mostly clear. Lows in the mid 40s. Light and variable Winds.

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Harleyville Temperature Statistics

October Temperature

Summerville Airport (14.3 miles)

  • Lowest 21 October, 2025

    44.6 °F

  • Average October

    67.3 °F

  • Highest 6 October, 2025

    87.8 °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

    76.9 °F
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