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.

Thunderstorm

79°F

26°C

Humidity 94%
Wind Speed W 5 mph
Barometer 30.07 in
Dewpoint 77°F (25°C)
Visibility 9.00 mi
Heat Index83°F (28°C)
Last update 24 Jul 6:35 pm EDT
Extended Forecast for

3 Miles NNW Summerville SC

Flood Watch July 24, 07:42pm until July 25, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 24, 07:42pm until July 25, 12:00am

    NOW until 12:00am Sat

    Flood Watch

  • Tonight

    Low: 75 °F

    T-storms
    Likely

  • Saturday

    Saturday: Showers and thunderstorms. High near 91. Heat index values as high as 102. Calm wind becoming southwest around 6 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Showers
    Likely then
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 5am, then a slight chance of showers. Low around 72. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    T-storms then
    Slight Chance
    T-storms

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 91. Calm wind becoming northeast around 5 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm. Mostly clear, with a low around 72. Calm wind. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 75. Light south wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and thunderstorms. High near 91. Heat index values as high as 102. Calm wind becoming southwest around 6 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and thunderstorms before 5am, then a slight chance of showers. Low around 72. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 91. Calm wind becoming northeast around 5 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of thunderstorms before 8pm. Mostly clear, with a low around 72. Calm wind. Chance of precipitation is 30%.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
Sunny, with a high near 97.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Wednesday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Friday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Summerville SC
 33.04°N 80.19°W (Elev. 75 ft)
Last Update:
2:40 pm EDT Jul 24, 2026
Forecast Valid:
7pm EDT Jul 24, 2026-6pm EDT Jul 31, 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