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.

Overcast

77°F

25°C

Humidity 79%
Wind Speed SW 12 G 21 mph
Barometer 29.85 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Feb 11:15 am EST
Extended Forecast for

4 Miles SSW Summerville SC

  • Today

    Today: Showers likely, mainly after 4pm. Mostly cloudy, with a high near 81. Southwest wind 13 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 81 °F

    Showers
    Likely

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 61. Southwest wind around 5 mph becoming calm in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 76. Light southwest wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers
    Likely then
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 51. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 51 °F

    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers before 1pm. Partly sunny, with a high near 62. Northwest wind 8 to 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Monday Night

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

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

Detailed Forecast

Today
Showers likely, mainly after 4pm. Mostly cloudy, with a high near 81. Southwest wind 13 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 61. Southwest wind around 5 mph becoming calm in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 76. Light southwest wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 51. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
A 40 percent chance of showers before 1pm. Partly sunny, with a high near 62. Northwest wind 8 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 32.
Monday
Sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 28.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Mostly clear, with a low around 33.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Summerville SC
 32.95°N 80.2°W (Elev. 30 ft)
Last Update:
8:22 am EST Feb 20, 2026
Forecast Valid:
11am EST Feb 20, 2026-6pm EST Feb 26, 2026
 
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