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.

Partly Cloudy

84°F

29°C

Humidity 89%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 81°F (27°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 15 Jul 10:15 am EDT
Extended Forecast for

2 Miles WNW Summerville SC

  • Today

    Today: Showers and thunderstorms likely, mainly between 3pm and 4pm. Partly sunny, with a high near 90. Heat index values as high as 102. Southeast wind 5 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 75. Southeast wind 3 to 7 mph.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. South wind 6 to 11 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 76. South wind 5 to 8 mph.

    Low: 76 °F

    Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Sunny, with a high near 93. South wind 5 to 11 mph.

    High: 93 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.

    High: 95 °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 76.

    Low: 76 °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 95.

    High: 95 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely, mainly between 3pm and 4pm. Partly sunny, with a high near 90. Heat index values as high as 102. Southeast wind 5 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 75. Southeast wind 3 to 7 mph.
Wednesday
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. South wind 6 to 11 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 76. South wind 5 to 8 mph.
Thursday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 93. South wind 5 to 11 mph.
Thursday Night
Mostly clear, with a low around 76.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76.
Saturday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Summerville SC
 33.02°N 80.22°W (Elev. 66 ft)
Last Update:
7:08 am EDT Jul 15, 2025
Forecast Valid:
10am EDT Jul 15, 2025-6pm EDT Jul 21, 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