Harleyville Weather Forecast

    • 51
    • 70

    Sunny

    • 51
    • 73

    Mostly Sunny

    • 49
    • 75

    Mostly Sunny

    • 45
    • 73

    Sunny

    • 47
    • 76

    Mostly Sunny

    • 53
    • 75

    Partly Sunny

    • 53
    • 76

    Partly Sunny

Today 23 Oct Dorchester

Mostly sunny. Highs in the upper 70s.

Tonight 23 Oct Dorchester

Clear. Lows in the lower 50s. Northeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Harleyville Temperature Statistics

October Temperature

Summerville Airport (14.3 miles)

  • Lowest 20 October, 2026

    42.8 °F

  • Average October

    69 °F

  • Highest 1 October, 2026

    87.8 °F

Climate (2021–2026)

Summerville Airport (14.3 miles)

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  • Average Low 2021–2026

    56.1 °F

  • Average 2021–2026

    65.8 °F

  • Average High 2021–2026

    77.2 °F
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