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.

Overcast

81°F

27°C

Humidity 84%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 22 Jul 11:55 pm EDT
Extended Forecast for

2 Miles SSW Summerville SC

  • Overnight

    Overnight: Partly cloudy, with a low around 78. South wind 6 to 8 mph.

    Low: 78 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 95. Heat index values as high as 105. Southwest wind 3 to 7 mph.

    High: 95 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 77. South wind 5 to 8 mph becoming calm after midnight.

    Low: 77 °F

    Mostly Cloudy

  • Friday

    Friday: Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 94. Heat index values as high as 105. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Partly Sunny
    then T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. Light south wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 75 °F

    T-storms
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 91. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Showers
    Likely then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 74. Chance of precipitation is 80%.

    Low: 74 °F

    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 70%.

    High: 91 °F

    Chance
    Showers then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 60%.

    Low: 74 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 78. South wind 6 to 8 mph.
Thursday
Partly sunny, with a high near 95. Heat index values as high as 105. Southwest wind 3 to 7 mph.
Thursday Night
Mostly cloudy, with a low around 77. South wind 5 to 8 mph becoming calm after midnight.
Friday
Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 94. Heat index values as high as 105. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. Light south wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 91. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 74. Chance of precipitation is 80%.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 60%.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Summerville SC
 32.97°N 80.2°W (Elev. 39 ft)
Last Update:
8:30 pm EDT Jul 22, 2026
Forecast Valid:
12am EDT Jul 23, 2026-6pm EDT Jul 29, 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