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.

Fair

95°F

35°C

Humidity 41%
Wind Speed Vrbl 3 mph
Barometer 29.96 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 4 Jul 3:35 pm EDT
Extended Forecast for

3 Miles NNW Summerville SC

  • Tonight

    Tonight: Mostly clear, with a low around 75. South wind 5 to 10 mph becoming light in the evening.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 98. Heat index values as high as 107. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 98 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 78. South wind 3 to 7 mph.

    Low: 78 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Heat index values as high as 105. Light southwest wind increasing to 5 to 9 mph in the morning.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77. South wind 5 to 8 mph.

    Low: 77 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 76. Chance of precipitation is 50%.

    Low: 76 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers before 8am, then showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 60%.

    High: 95 °F

    Mostly Sunny
    then T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 60%.

    Low: 76 °F

    T-storms
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 75. South wind 5 to 10 mph becoming light in the evening.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 98. Heat index values as high as 107. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 78. South wind 3 to 7 mph.
Monday
A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Heat index values as high as 105. Light southwest wind increasing to 5 to 9 mph in the morning.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77. South wind 5 to 8 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 76. Chance of precipitation is 50%.
Wednesday
A slight chance of showers before 8am, then showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
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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:
2:35 pm EDT Jul 4, 2026
Forecast Valid:
4pm EDT Jul 4, 2026-6pm EDT Jul 11, 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