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

Hazardous Weather Conditions

Current conditions at

Moncks Corner Berkeley County (KMKS)

Lat: 33.19°NLon: 80.04°WElev: 72ft.

Partly Cloudy

75°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 16 Aug 1:55 am EDT
Extended Forecast for

Saint Stephen SC

Heat Advisory August 16, 11:00am until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 106. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 98. Heat index values as high as 110. Light west wind.

    High: 98 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 98.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 75.

    Low: 75 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 76. Calm wind.
Sunday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 106. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Calm wind.
Monday
Sunny, with a high near 98. Heat index values as high as 110. Light west wind.
Monday Night
Mostly clear, with a low around 77. Calm wind.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 98.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 75.
Wednesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 96.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Stephen SC
 33.4°N 79.9°W (Elev. 79 ft)
Last Update:
2:15 am EDT Aug 16, 2026
Forecast Valid:
2am EDT Aug 16, 2026-6pm EDT Aug 22, 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