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.

Fair

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 15 Oct 12:55 am EDT
Extended Forecast for

4 Miles SSW Harleyville SC

  • Overnight

    Overnight: Clear, with a low around 60. Calm wind.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. Light south wind.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 86. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 86 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. Southwest wind 5 to 8 mph becoming west after midnight.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 2am. Mostly clear, with a low around 47.

    Low: 47 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 60. Calm wind.
Thursday
Sunny, with a high near 89. Calm wind.
Thursday Night
Mostly clear, with a low around 62. Light south wind.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 86. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 62. Southwest wind 5 to 8 mph becoming west after midnight.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
A 20 percent chance of showers before 2am. Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 50.
Monday
Mostly sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Harleyville SC
 33.16°N 80.47°W (Elev. 85 ft)
Last Update:
8:32 pm EDT Oct 14, 2026
Forecast Valid:
1am EDT Oct 15, 2026-6pm EDT Oct 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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