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

74°F

23°C

Humidity 94%
Wind Speed Calm
Barometer 29.97 in (1014.6 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 28 Aug 1:56 am EDT
Extended Forecast for

Hanahan SC

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely, mainly between 4pm and 5pm. Partly sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 7pm, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    T-storms
    Likely then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 11am. Partly sunny, with a high near 88. 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.

    High: 88 °F

    Showers
    Likely

  • Saturday Night

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

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 90. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 92.

    High: 92 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 74.

    Low: 74 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Calm wind.
Friday
Showers and thunderstorms likely, mainly between 4pm and 5pm. Partly sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely, mainly before 7pm, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers likely, with thunderstorms also possible after 11am. Partly sunny, with a high near 88. 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.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Calm wind.
Sunday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 90. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 92.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 74.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hanahan SC
 32.91°N 80.02°W (Elev. 30 ft)
Last Update:
8:30 pm EDT Aug 27, 2026
Forecast Valid:
2am EDT Aug 28, 2026-6pm EDT Sep 3, 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