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.

Thunderstorm in Vicinity

86°F

30°C

Humidity 66%
Wind Speed Vrbl 6 G 12 mph
Barometer 30.02 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 12 Jul 2:35 pm EDT
Extended Forecast for

3 Miles SE Summerville Airport SC

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly after 4pm. Mostly cloudy, with a high near 97. Heat index values as high as 106. West wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 97 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers after 3am. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    T-storms
    Likely

  • Monday

    Monday: Showers and thunderstorms. High near 90. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 90 °F

    Partly Sunny
    then T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Low around 70. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    T-storms then
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 87. Light east wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 87 °F

    Chance
    T-storms then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 71. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 71 °F

    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.

    High: 91 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 60%.

    Low: 73 °F

    T-storms
    Likely then
    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly after 4pm. Mostly cloudy, with a high near 97. Heat index values as high as 106. West wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers after 3am. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms. High near 90. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and thunderstorms likely before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Low around 70. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 87. Light east wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 71. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 60%.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.
Thursday Night
Mostly clear, with a low around 74.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Saturday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Summerville Airport SC
 33.02°N 80.25°W (Elev. 49 ft)
Last Update:
2:45 pm EDT Jul 12, 2026
Forecast Valid:
2pm EDT Jul 12, 2026-6pm EDT Jul 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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