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

Hazardous Weather Conditions

Current conditions at

Charleston, Charleston Air Force Base (KCHS)

Lat: 32.9°NLon: 80.04°WElev: 46ft.

Fair

80°F

27°C

Humidity 90%
Wind Speed SW 5 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 4 Sep 10:56 pm EDT
Extended Forecast for

3 Miles WNW Charleston SC

Heat Advisory September 5, 11:00am until September 5, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 77. Light southwest wind.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. Heat index values as high as 109. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms between 1am and 2am. Mostly clear, with a low around 78. Southwest wind 5 to 8 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Mostly Clear
    then Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm between 2pm and 5pm, then showers and thunderstorms likely after 5pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 92. Heat index values as high as 106. West wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    High: 92 °F

    Sunny then
    Heavy Rain

  • Sunday Night

    Sunday 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. Some of the storms could produce heavy rainfall. Low around 74. South wind around 6 mph becoming northeast in the evening. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 74 °F

    Heavy Rain
    then Showers

  • Labor Day

    Labor Day: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Showers
    Likely then
    T-storms
    Likely

  • Monday Night

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

    Low: 73 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 8am. Mostly sunny, with a high near 85.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 74. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 77. Light southwest wind.
Saturday
Sunny, with a high near 93. Heat index values as high as 109. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms between 1am and 2am. Mostly clear, with a low around 78. Southwest wind 5 to 8 mph. Chance of precipitation is 30%.
Sunday
Showers likely and possibly a thunderstorm between 2pm and 5pm, then showers and thunderstorms likely after 5pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 92. Heat index values as high as 106. West wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Sunday 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. Some of the storms could produce heavy rainfall. Low around 74. South wind around 6 mph becoming northeast in the evening. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Labor Day
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 8am. Mostly sunny, with a high near 85.
Tuesday Night
A chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Wednesday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 74.
Friday
Sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Charleston SC
 32.8°N 80.03°W (Elev. 10 ft)
Last Update:
8:32 pm EDT Sep 4, 2026
Forecast Valid:
11pm EDT Sep 4, 2026-6pm EDT Sep 11, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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