Harleyville Weather Forecast

    • 69
    • 92

    Chance Thunderstorms

    • 72
    • 94

    Partly Sunny

    • 72
    • 96

    Slight Chance Thunderstorms

    • 72
    • 98

    Slight Chance Thunderstorms

    • 73
    • 96

    Chance Thunderstorms

    • 71
    • 94

    Chance Thunderstorms

Today 9 Jun Dorchester

Partly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. Light and variable Winds, becoming southeast around 5 Mph in the afternoon. Chance of rain 20 percent.

Tonight 9 Jun Dorchester

Mostly cloudy. Lows in the lower 70s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harleyville Temperature Statistics

June Temperature

Summerville Airport (14.3 miles)

  • Lowest 3 June, 2026

    51.8 °F

  • Average June

    71.9 °F

  • Highest 5 June, 2026

    89.6 °F

Climate (2021–Present)

Summerville Airport (14.3 miles)

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  • Average Low 2021–2026

    56 °F

  • Average 2021–2026

    65.7 °F

  • Average High 2021–2026

    76.8 °F
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