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.

Fair

75°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 28 Jun 7:15 am EDT
Extended Forecast for

3 Miles ESE Summerville Airport SC

  • Today

    Today: Mostly sunny, with a high near 97. Heat index values as high as 104. West wind 5 to 9 mph.

    High: 97 °F

    Mostly Sunny

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 75. West wind around 5 mph becoming calm in the evening. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 75 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 96. Heat index values as high as 104. Calm wind becoming north around 6 mph in the afternoon.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 75. Light southeast wind.

    Low: 75 °F

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Northeast wind 3 to 7 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 72.

    Low: 72 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 72.

    Low: 72 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 97. Heat index values as high as 104. West wind 5 to 9 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 75. West wind around 5 mph becoming calm in the evening. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 96. Heat index values as high as 104. Calm wind becoming north around 6 mph in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 75. Light southeast wind.
Tuesday
Sunny, with a high near 94. Northeast wind 3 to 7 mph.
Tuesday Night
Clear, with a low around 72.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Clear, with a low around 72.
Thursday
Sunny, with a high near 96.
Thursday Night
Mostly clear, with a low around 74.
Friday
Sunny, with a high near 98.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Independence Day
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Summerville Airport SC
 33.04°N 80.24°W (Elev. 59 ft)
Last Update:
2:45 am EDT Jun 28, 2026
Forecast Valid:
7am EDT Jun 28, 2026-6pm EDT Jul 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