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.

A Few Clouds

82°F

28°C

Humidity 89%
Wind Speed S 8 mph
Barometer 30.12 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 12 Jun 8:15 am EDT
Extended Forecast for

Saint Simons Island GA

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. Southeast wind 5 to 13 mph, with gusts as high as 20 mph.

    High: 88 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 75. South wind 8 to 11 mph, with gusts as high as 17 mph.

    Low: 75 °F

    Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 88. South wind 7 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    T-storms
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 75. South wind around 9 mph. Chance of precipitation is 60%.

    Low: 75 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 89. South wind 5 to 9 mph. Chance of precipitation is 80%.

    High: 89 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a slight chance of showers and thunderstorms after 2am. Low around 74. Chance of precipitation is 80%.

    Low: 74 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 70%.

    High: 90 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely then
    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 60%.

    High: 92 °F

    Slight Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. Southeast wind 5 to 13 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 75. South wind 8 to 11 mph, with gusts as high as 17 mph.
Friday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 88. South wind 7 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 75. South wind around 9 mph. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 89. South wind 5 to 9 mph. Chance of precipitation is 80%.
Saturday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a slight chance of showers and thunderstorms after 2am. Low around 74. Chance of precipitation is 80%.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
Monday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons Island GA
 31.21°N 81.36°W
Last Update:
7:45 am EDT Jun 12, 2025
Forecast Valid:
8am EDT Jun 12, 2025-6pm EDT Jun 18, 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