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

79°F

26°C

Humidity 100%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 16 Jul 12:15 am EDT
Extended Forecast for

3 Miles SSW Summerville SC

  • Overnight

    Overnight: Partly cloudy, with a low around 76. Southeast wind 3 to 5 mph.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 91. Heat index values as high as 102. South wind 5 to 10 mph, with gusts as high as 21 mph. 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
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South wind 5 to 8 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Heat index values as high as 105. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. South wind 5 to 8 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 76. Southeast wind 3 to 5 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 91. Heat index values as high as 102. South wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 76. South wind 5 to 8 mph.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Heat index values as high as 105. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 76. South wind 5 to 8 mph.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.
Saturday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 94. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Summerville SC
 32.97°N 80.2°W (Elev. 39 ft)
Last Update:
6:33 pm EDT Jul 15, 2025
Forecast Valid:
12am EDT Jul 16, 2025-6pm EDT Jul 22, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation