National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Shaw Air Force Base (KSSC)

Lat: 33.97°NLon: 80.48°WElev: 243ft.

Fair

79°F

26°C

Humidity 81%
Wind Speed Calm
Barometer 29.89 in (1012.0 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 13 Aug 4:55 am EDT
Extended Forecast for

3 Miles S South Sumter SC

Heat Advisory August 13, 12:00pm until August 13, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 77. Calm wind.

    Low: 77 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and hot, with a high near 99. Heat index values as high as 110. Light west wind.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 77. Calm wind.

    Low: 77 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Light and variable wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 99 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 76 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 96.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

Detailed Forecast

Today
A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 77. Calm wind.
Friday
Mostly sunny and hot, with a high near 99. Heat index values as high as 110. Light west wind.
Friday Night
Partly cloudy, with a low around 77. Calm wind.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Light and variable wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 96.
Sunday Night
Partly cloudy, with a low around 77.
Monday
Sunny and hot, with a high near 100.
Monday Night
Partly cloudy, with a low around 78.
Tuesday
A chance of showers and thunderstorms. Sunny and hot, with a high near 99. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 96. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S South Sumter SC
 33.85°N 80.36°W (Elev. 174 ft)
Last Update:
2:20 am EDT Aug 13, 2026
Forecast Valid:
5am EDT Aug 13, 2026-6pm EDT Aug 19, 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