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

Charleston, Charleston Air Force Base (KCHS)

Lat: 32.9°NLon: 80.04°WElev: 46ft.

Mostly Cloudy

86°F

30°C

Humidity 57%
Wind Speed E 8 mph
Barometer 30.06 in (1017.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 25 Jun 2:56 pm EDT
Extended Forecast for

4 Miles S Summerville SC

  • Tonight

    Tonight: Mostly clear, with a low around 74. Southeast wind 5 to 7 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers between 10am and 11am, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 93. Heat index values as high as 102. Calm wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 40%.

    High: 93 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of thunderstorms before midnight, then a slight chance of showers and thunderstorms between midnight and 2am. Partly cloudy, with a low around 76. South wind 5 to 9 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 95. Heat index values as high as 105. Southwest wind 5 to 8 mph.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 77. Southwest wind 5 to 7 mph.

    Low: 77 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 98. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 98 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 94. Chance of precipitation is 60%.

    High: 94 °F

    Mostly Sunny
    then T-storms
    Likely

  • Monday Night

    Monday 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

Tonight
Mostly clear, with a low around 74. Southeast wind 5 to 7 mph becoming calm in the evening.
Friday
A slight chance of showers between 10am and 11am, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 93. Heat index values as high as 102. Calm wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 40%.
Friday Night
A chance of thunderstorms before midnight, then a slight chance of showers and thunderstorms between midnight and 2am. Partly cloudy, with a low around 76. South wind 5 to 9 mph. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 95. Heat index values as high as 105. Southwest wind 5 to 8 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 77. Southwest wind 5 to 7 mph.
Sunday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 98. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76.
Monday
Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 94. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 60%.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Summerville SC
 32.95°N 80.18°W (Elev. 10 ft)
Last Update:
2:40 pm EDT Jun 25, 2026
Forecast Valid:
3pm EDT Jun 25, 2026-6pm EDT Jul 2, 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