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.

A Few Clouds

86°F

30°C

Humidity 59%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 70°F (21°C)
Visibility 8.00 mi
Heat Index91°F (33°C)
Last update 29 May 2:15 pm EDT
Extended Forecast for

Summerville SC

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 87. Southeast wind around 11 mph.

    High: 87 °F

    Partly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 10am, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 84. Light northwest wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Calm wind becoming northeast around 6 mph after midnight. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 2pm. Mostly cloudy, with a high near 79. Northeast wind around 11 mph, with gusts as high as 20 mph.

    High: 79 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 85. Chance of precipitation is 50%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Partly sunny, with a high near 87. Southeast wind around 11 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm in the evening.
Saturday
Showers and thunderstorms likely, mainly before 10am, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 84. Light northwest wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Calm wind becoming northeast around 6 mph after midnight. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 20 percent chance of showers before 2pm. Mostly cloudy, with a high near 79. Northeast wind around 11 mph, with gusts as high as 20 mph.
Sunday Night
A slight chance of showers before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Tuesday
A chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summerville SC
 32.99°N 80.17°W (Elev. 75 ft)
Last Update:
2:12 pm EDT May 29, 2026
Forecast Valid:
2pm EDT May 29, 2026-6pm EDT Jun 4, 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