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

Beaufort County Airport (KARW)

Lat: 32.41°NLon: 80.63°WElev: 10ft.

Partly Cloudy

25°C

77°F

Humidity 94%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 24°C (75°F)
Visibility 16 km
Heat Index26°C (78°F)
Last update 13 Jul 1:15 am EDT
Extended Forecast for

Saint Helena Island SC

  • Overnight

    Overnight: Partly cloudy, with a low around 24. Calm wind.

    Low: 24 °C

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 34. Heat index values as high as 41. Calm wind.

    High: 34 °C

    Sunny then
    Heavy Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. Calm wind.

    Low: 25 °C

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 33. Heat index values as high as 39. Calm wind becoming east 5 to 10 km/h in the morning.

    High: 33 °C

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 25. Southeast wind 3 to 8 km/h.

    Low: 25 °C

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 32. Chance of precipitation is 60%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.

    High: 32 °C

    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 25. Chance of precipitation is 60%.

    Low: 25 °C

    T-storms
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 31. Chance of precipitation is 70%.

    High: 31 °C

    Showers
    Likely then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.

    Low: 26 °C

    T-storms
    Likely then
    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 24. Calm wind.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 34. Heat index values as high as 41. Calm wind.
Sunday Night
Partly cloudy, with a low around 25. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 33. Heat index values as high as 39. Calm wind becoming east 5 to 10 km/h in the morning.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 25. Southeast wind 3 to 8 km/h.
Tuesday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 32. Chance of precipitation is 60%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 25. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 31. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 32.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 26.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 32.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 26.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena Island SC
 32.39°N 80.57°W (Elev. 20 m)
Last Update:
6:37 pm EDT Jul 12, 2025
Forecast Valid:
1am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
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