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

Hazardous Weather Conditions

Current conditions at

Charleston Executive Airport (KJZI)

Lat: 32.7°NLon: 80°WElev: 16ft.

Mostly Cloudy

81°F

27°C

Humidity 100%
Wind Speed NW 5 mph
Barometer 30.01 in
Dewpoint 81°F (27°C)
Visibility 7.00 mi
Heat Index91°F (33°C)
Last update 30 Jul 7:55 am EDT
Extended Forecast for

Charleston SCSimilar City Names

Heat Advisory July 30, 11:00am until July 30, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 92. Heat index values as high as 108. Calm wind becoming south 5 to 7 mph in the morning. New rainfall amounts between a half and three quarters of an inch possible.

    High: 92 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 79. Southwest wind 3 to 6 mph.

    Low: 79 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 107. Southwest wind 5 to 10 mph.

    High: 94 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 80. Southwest wind 6 to 8 mph.

    Low: 80 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 95. Southwest wind 6 to 11 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 95 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 76 °F

    T-storms
    Likely then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 87. Chance of precipitation is 90%.

    High: 87 °F

    Showers
    Likely then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 8pm, then showers and thunderstorms likely between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Low around 72. Chance of precipitation is 80%.

    Low: 72 °F

    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely then
    T-storms
    Likely

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 92. Heat index values as high as 108. Calm wind becoming south 5 to 7 mph in the morning. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 79. Southwest wind 3 to 6 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 107. Southwest wind 5 to 10 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 80. Southwest wind 6 to 8 mph.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 95. Southwest wind 6 to 11 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 87. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before 8pm, then showers and thunderstorms likely between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Low around 72. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Monday
Showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 89. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston SCSimilar City Names
 32.79°N 80.01°W (Elev. 10 ft)
Last Update:
6:29 am EDT Jul 30, 2025
Forecast Valid:
8am EDT Jul 30, 2025-6pm EDT Aug 5, 2025
 
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