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

79°F

26°C

Humidity 89%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 4 Oct 12:55 pm EDT
Extended Forecast for

Summerville SC

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 82. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 82 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 68. Calm wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 68 °F

    Showers

  • Monday

    Monday: Showers and thunderstorms, mainly before noon. High near 74. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 63. Northeast wind 3 to 7 mph.

    Low: 63 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 74. Northeast wind 11 to 13 mph, with gusts as high as 24 mph.

    High: 74 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 82. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and possibly a thunderstorm. Low around 68. Calm wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers and thunderstorms, mainly before noon. High near 74. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Mostly cloudy, with a low around 63. Northeast wind 3 to 7 mph.
Tuesday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 74. Northeast wind 11 to 13 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Mostly cloudy, with a low around 57.
Thursday
A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 58.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 79.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 62.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summerville SC
 33.01°N 80.17°W (Elev. 49 ft)
Last Update:
8:31 am EDT Oct 4, 2026
Forecast Valid:
1pm EDT Oct 4, 2026-6pm EDT Oct 10, 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