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

Hazardous Weather Conditions

Current conditions at

Beaufort, Marine Corps Air Station (KNBC)

Lat: 32.49°NLon: 80.7°WElev: 36ft.

Fair

98°F

37°C

Humidity 42%
Wind Speed Vrbl 3 mph
Barometer 29.88 in (1012.0 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index106°F (41°C)
Last update 19 Aug 5:56 pm EDT
Extended Forecast for

Port Royal SC

Heat Advisory August 20, 11:00am until August 20, 08:00pm
Heat Advisory August 19, 06:10pm until August 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
...
  •  
    Heat Advisory August 19, 06:10pm until August 19, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 80 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 95. Heat index values as high as 110. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 80. South wind 3 to 7 mph.

    Low: 80 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Heat index values as high as 110. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 76. Southwest wind 3 to 7 mph.

    Low: 76 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Mostly Sunny
    then T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

    Low: 76 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 80. Southeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 95. Heat index values as high as 110. Calm wind becoming south 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 80. South wind 3 to 7 mph.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Heat index values as high as 110. Calm wind becoming south 5 to 9 mph in the afternoon.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 76. Southwest wind 3 to 7 mph.
Saturday
Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.
Sunday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. Chance of precipitation is 20%.
Monday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 77.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 92.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Royal SC
 32.38°N 80.68°W (Elev. 3 ft)
Last Update:
2:40 pm EDT Aug 19, 2026
Forecast Valid:
6pm EDT Aug 19, 2026-6pm EDT Aug 26, 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