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

Moncks Corner Berkeley County (KMKS)

Lat: 33.19°NLon: 80.04°WElev: 72ft.

Mostly Cloudy

90°F

32°C

Humidity 59%
Wind Speed NE 6 mph
Barometer 30.10 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 9 Aug 2:35 pm EDT
Extended Forecast for

Saint Stephen SC

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Sunny, with a high near 91. Light southwest wind.

    High: 91 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 103. Calm wind becoming west around 5 mph in the afternoon.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

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

    Low: 75 °F

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. West wind 3 to 6 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Sunny, with a high near 91. Light southwest wind.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 74. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 103. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. Calm wind.
Tuesday
Sunny, with a high near 94. West wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
Sunny, with a high near 96.
Thursday Night
Partly cloudy, with a low around 78.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 97.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Stephen SC
 33.4°N 79.93°W (Elev. 72 ft)
Last Update:
2:32 pm EDT Aug 9, 2026
Forecast Valid:
2pm EDT Aug 9, 2026-6pm EDT Aug 15, 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