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.

Mostly Cloudy

59°F

15°C

Humidity 100%
Wind Speed Calm
Barometer 29.87 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 8 Nov 5:55 am EST
Extended Forecast for

4 Miles WSW Harleyville SC

  • Today

    Today: A slight chance of showers before 9am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Southwest wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 80 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 7pm. Partly cloudy, with a low around 43. Northwest wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 43 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 54. West wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 32.

    Low: 32 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers before 9am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 20%.
Tonight
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 20%.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Southwest wind 5 to 9 mph, with gusts as high as 20 mph.
Sunday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 43. Northwest wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 54. West wind 7 to 11 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 28.
Veterans Day
Sunny, with a high near 51.
Tuesday Night
Clear, with a low around 32.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Harleyville SC
 33.2°N 80.5°W (Elev. 79 ft)
Last Update:
5:28 am EST Nov 8, 2025
Forecast Valid:
6am EST Nov 8, 2025-6pm EST Nov 14, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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