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

Beaufort, Marine Corps Air Station (KNBC)

Lat: 32.49°NLon: 80.7°WElev: 36ft.

Mostly Cloudy

80°F

27°C

Humidity 60%
Wind Speed S 8 mph
Barometer 30.33 in (1027.2 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 3 Apr 11:56 am EDT
Extended Forecast for

Saint Helena Island SC

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms before 3pm. Mostly sunny, with a high near 77. Southeast wind around 9 mph.

    High: 77 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Light southeast wind.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65. South wind around 6 mph.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. South wind 6 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely. Cloudy, with a low around 60. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 71.

    High: 71 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms before 3pm. Mostly sunny, with a high near 77. Southeast wind around 9 mph.
Tonight
Partly cloudy, with a low around 64. Light southeast wind.
Saturday
Mostly sunny, with a high near 77. Calm wind becoming southeast 5 to 8 mph in the morning.
Saturday Night
Mostly clear, with a low around 65. South wind around 6 mph.
Sunday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. South wind 6 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely. Cloudy, with a low around 60. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 71.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Mostly cloudy, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena Island SC
 32.39°N 80.57°W (Elev. 20 ft)
Last Update:
8:32 am EDT Apr 3, 2026
Forecast Valid:
1pm EDT Apr 3, 2026-6pm EDT Apr 9, 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