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.

Thunderstorm in Vicinity

86°F

30°C

Humidity 84%
Wind Speed E 13 mph
Barometer 29.97 in
Dewpoint 81°F (27°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 4 Sep 3:15 pm EDT
Extended Forecast for

Saint Simons GA

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 86. Southeast wind around 11 mph, with gusts as high as 15 mph.

    High: 86 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. South wind 5 to 7 mph.

    Low: 76 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms between 2pm and 5pm. Mostly sunny, with a high near 90. Heat index values as high as 105. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 20%.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms between 8pm and 10pm. Mostly clear, with a low around 76. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 93. West wind around 7 mph. Chance of precipitation is 60%.

    High: 93 °F

    Mostly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

    Low: 76 °F

    Showers
    Likely

  • Labor Day

    Labor Day: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 86. Chance of precipitation is 80%.

    High: 86 °F

    Showers then
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

    Low: 76 °F

    T-storms
    Likely then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 85. Breezy. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 86. Southeast wind around 11 mph, with gusts as high as 15 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. South wind 5 to 7 mph.
Saturday
A slight chance of showers and thunderstorms between 2pm and 5pm. Mostly sunny, with a high near 90. Heat index values as high as 105. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms between 8pm and 10pm. Mostly clear, with a low around 76. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.
Sunday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 93. West wind around 7 mph. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Labor Day
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 86. Chance of precipitation is 80%.
Monday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 85. Breezy. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 77. Breezy. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Breezy.
Wednesday Night
A chance of thunderstorms. Mostly clear, with a low around 76. Chance of precipitation is 30%.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons GA
 31.16°N 81.39°W
Last Update:
2:20 pm EDT Sep 4, 2026
Forecast Valid:
3pm EDT Sep 4, 2026-6pm EDT Sep 10, 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