National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Summerville Airport (KDYB)

Lat: 33.06°NLon: 80.28°WElev: 56ft.

Partly Cloudy

57°F

14°C

Humidity 77%
Wind Speed Calm
Barometer 30.20 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 3 Jun 4:15 am EDT
Extended Forecast for

Harleyville SC

  • Today

    Today: Sunny, with a high near 81. Light northeast wind increasing to 5 to 10 mph in the morning.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 55. Calm wind.

    Low: 55 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 57. Calm wind.

    Low: 57 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 90. Light and variable wind.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92.

    High: 92 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 81. Light northeast wind increasing to 5 to 10 mph in the morning.
Tonight
Clear, with a low around 55. Calm wind.
Thursday
Sunny, with a high near 86. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 57. Calm wind.
Friday
Sunny, with a high near 90. Light and variable wind.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92.
Sunday Night
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 91.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harleyville SC
 33.22°N 80.44°W (Elev. 85 ft)
Last Update:
2:41 am EDT Jun 3, 2026
Forecast Valid:
4am EDT Jun 3, 2026-6pm EDT Jun 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation