Harleyville Weather Forecast

    • 60
    • 82

    Increasing Clouds

    • 61
    • 85

    Chance Thunderstorms

    • 62
    • 88

    Mostly Cloudy

    • 39
    • 76

    Rain Showers Likely

    • 46
    • 68

    Mostly Sunny

    • 52
    • 78

    Mostly Sunny

    • 59
    • 80

    Slight Chance Rain Showers

Today 9 Mar Dorchester

Mostly sunny. Highs in the lower 80s. West Winds around 5 Mph.

Tonight 9 Mar Dorchester

Mostly clear this Evening, then becoming mostly cloudy. Lows around 60. Southwest Winds around 5 Mph this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harleyville Temperature Statistics

March Temperature

Summerville Airport (14.3 miles)

  • Lowest 2 March, 2026

    42.8 °F

  • Average March

    63 °F

  • Highest 6 March, 2026

    84.2 °F

Climate (2021–Present)

Summerville Airport (14.3 miles)

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  • Average Low 2021–2026

    56 °F

  • Average 2021–2026

    65.6 °F

  • Average High 2021–2026

    76.6 °F
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