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

86°F

30°C

Humidity 75%
Wind Speed E 10 mph
Barometer 29.90 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 17 Aug 5:15 pm EDT
Extended Forecast for

Saint Simons GA

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. East wind around 11 mph, with gusts as high as 17 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. East wind 5 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am, then a slight chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 89. East wind 5 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. East wind around 6 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 90. Northeast wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am, then a slight chance of showers and thunderstorms after 2am. Mostly clear, with a low around 76. Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Sunny, with a high near 91. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of thunderstorms before 8pm. Mostly clear, with a low around 77. Chance of precipitation is 30%.

    Low: 77 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.

    High: 92 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. East wind around 11 mph, with gusts as high as 17 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. East wind 5 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am, then a slight chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 89. East wind 5 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 76. East wind around 6 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 90. Northeast wind 7 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am, then a slight chance of showers and thunderstorms after 2am. Mostly clear, with a low around 76. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Sunny, with a high near 91. Chance of precipitation is 30%.
Wednesday Night
A chance of thunderstorms before 8pm. Mostly clear, with a low around 77. Chance of precipitation is 30%.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 76. Chance of precipitation is 40%.
Friday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Mostly sunny, with a high near 89. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely. Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons GA
 31.18°N 81.36°W
Last Update:
1:26 pm EDT Aug 17, 2025
Forecast Valid:
5pm EDT Aug 17, 2025-6pm EDT Aug 24, 2025
 
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