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

Charleston Executive Airport (KJZI)

Lat: 32.7°NLon: 80°WElev: 16ft.

Fair

75°F

24°C

Humidity 100%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Last update 12 Sep 12:55 am EDT
Extended Forecast for

3 Miles SW Mount Pleasant SC

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly between 8am and 5pm. Mostly sunny, with a high near 88. Heat index values as high as 101. Calm wind becoming south 5 to 8 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. South wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 76 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 103. Southwest wind 3 to 8 mph.

    High: 89 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southwest wind 3 to 6 mph.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Mostly clear, with a low around 75. Chance of precipitation is 20%.

    Low: 75 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. Calm wind.
Saturday
A 50 percent chance of showers and thunderstorms, mainly between 8am and 5pm. Mostly sunny, with a high near 88. Heat index values as high as 101. Calm wind becoming south 5 to 8 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. South wind 5 to 7 mph. Chance of precipitation is 20%.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 103. Southwest wind 3 to 8 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southwest wind 3 to 6 mph.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91.
Monday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Mostly clear, with a low around 75. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
A 20 percent chance of showers after 2pm. Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
Sunny, with a high near 86.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Mount Pleasant SC
 32.81°N 79.9°W (Elev. 10 ft)
Last Update:
8:40 pm EDT Sep 11, 2026
Forecast Valid:
1am EDT Sep 12, 2026-6pm EDT Sep 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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