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

Hazardous Weather Conditions

Current conditions at

Summerville Airport (KDYB)

Lat: 33.06°NLon: 80.28°WElev: 56ft.

Fair

39°F

4°C

Humidity 48%
Wind Speed W 9 mph
Barometer 30.05 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 23 Feb 1:35 am EST
Extended Forecast for

5 Miles WNW Harleyville SC

Cold Weather Advisory February 23, 01:43am until February 23, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory February 23, 01:43am until February 23, 09:00am

    NOW until 9:00am Mon

    Cold Weather Advisory

  • Overnight

    Low: 28 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 47. Northwest wind 8 to 16 mph, with gusts as high as 26 mph.

    High: 47 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 23. Northwest wind around 6 mph becoming calm after midnight.

    Low: 23 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52. Calm wind becoming west around 6 mph in the afternoon.

    High: 52 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. Calm wind becoming southwest around 6 mph after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 28. Northwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 47. Northwest wind 8 to 16 mph, with gusts as high as 26 mph.
Monday Night
Mostly clear, with a low around 23. Northwest wind around 6 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 52. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 34. Calm wind becoming southwest around 6 mph after midnight.
Wednesday
Mostly cloudy, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 71.
Thursday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 66.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 43.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 67.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 44.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Harleyville SC
 33.25°N 80.52°W (Elev. 85 ft)
Last Update:
7:32 pm EST Feb 22, 2026
Forecast Valid:
1am EST Feb 23, 2026-6pm EST Mar 1, 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