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.

A Few Clouds

79°F

26°C

Humidity 100%
Wind Speed S 3 mph
Barometer 30.03 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 17 Jun 1:55 am EDT
Extended Forecast for

3 Miles WSW Summerville SC

  • Overnight

    Overnight: Mostly clear, with a low around 75. Southwest wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Heat index values as high as 103. Southwest wind 6 to 9 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 77. South wind 6 to 8 mph.

    Low: 77 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Southwest wind 6 to 8 mph.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 75. South wind 6 to 8 mph.

    Low: 75 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75.

    Low: 75 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74.

    Low: 74 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Southwest wind around 5 mph.
Tuesday
Sunny, with a high near 93. Heat index values as high as 103. Southwest wind 6 to 9 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 77. South wind 6 to 8 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Southwest wind 6 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 75. South wind 6 to 8 mph.
Juneteenth
A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.
Thursday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75.
Friday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Friday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74.
Saturday
A 40 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 92.
Saturday Night
A chance of thunderstorms. Mostly clear, with a low around 75. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Summerville SC
 33°N 80.22°W (Elev. 59 ft)
Last Update:
1:10 am EDT Jun 17, 2025
Forecast Valid:
2am EDT Jun 17, 2025-6pm EDT Jun 23, 2025
 
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