Hazardous Weather Conditions

Current conditions at

Summerville Airport (KDYB)

Lat: 33.06°NLon: 80.28°WElev: 56ft.

Fair

77°F

25°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Aug 6:55 am EDT
Extended Forecast for

4 Miles SSW Harleyville SC

  • Today

    Today: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 93. Heat index values as high as 105. Calm wind.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 92. Heat index values as high as 101. Light north wind.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny, with a high near 92. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 105. Calm wind.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. Calm wind.
Saturday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 101. Light north wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Calm wind becoming northeast around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 72.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 73.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Harleyville SC
 33.16°N 80.47°W (Elev. 85 ft)
5:44 am EDT Aug 15, 2025
7am EDT Aug 15, 2025-6pm EDT Aug 21, 2025
 
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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