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

Brunswick, Malcolm McKinnon Airport (KSSI)

Lat: 31.15°NLon: 81.39°WElev: 20ft.

Fair

88°F

31°C

Humidity 79%
Wind Speed SE 12 mph
Barometer 30.07 in
Dewpoint 81°F (27°C)
Visibility 10.00 mi
Heat Index106°F (41°C)
Last update 19 Jun 2:55 pm EDT
Extended Forecast for

Saint Simons Island GA

  • Juneteenth

    Juneteenth: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 91. Heat index values as high as 103. South wind around 7 mph.

    High: 91 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 74. Southwest wind 5 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 91. Heat index values as high as 102. West wind 5 to 7 mph becoming southeast in the afternoon.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South wind 5 to 7 mph.

    Low: 74 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming southeast 5 to 9 mph in the morning.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Sunday Night

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

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Juneteenth
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 91. Heat index values as high as 103. South wind around 7 mph.
Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 74. Southwest wind 5 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 91. Heat index values as high as 102. West wind 5 to 7 mph becoming southeast in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South wind 5 to 7 mph.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming southeast 5 to 9 mph in the morning.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons Island GA
 31.23°N 81.36°W
Last Update:
2:55 pm EDT Jun 19, 2025
Forecast Valid:
3pm EDT Jun 19, 2025-6pm EDT Jun 25, 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