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

75°F

24°C

Humidity 94%
Wind Speed SW 7 mph
Barometer 30.00 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 22 Jun 3:55 am EDT
Extended Forecast for

Saint Simons Island GA

  • Overnight

    Overnight: A 20 percent chance of showers before 5am. Mostly cloudy, with a low around 73. Southwest wind around 7 mph.

    Low: 73 °F

    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 93. Heat index values as high as 106. Southwest wind 8 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 30%.

    High: 93 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. South wind 8 to 10 mph, with gusts as high as 16 mph.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms after 5pm. Sunny and hot, with a high near 97. Heat index values as high as 111. West wind around 9 mph, with gusts as high as 15 mph.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 76. West wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.

    Low: 77 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers before 5am. Mostly cloudy, with a low around 73. Southwest wind around 7 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 93. Heat index values as high as 106. Southwest wind 8 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 30%.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. South wind 8 to 10 mph, with gusts as high as 16 mph.
Tuesday
A 10 percent chance of showers and thunderstorms after 5pm. Sunny and hot, with a high near 97. Heat index values as high as 111. West wind around 9 mph, with gusts as high as 15 mph.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 76. West wind 3 to 5 mph. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Wednesday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 77.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Saturday
Mostly sunny and hot, with a high near 97.
Saturday Night
Partly cloudy, with a low around 79.
Sunday
Sunny and hot, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons Island GA
 31.23°N 81.36°W
Last Update:
2:21 am EDT Jun 22, 2026
Forecast Valid:
4am EDT Jun 22, 2026-6pm EDT Jun 28, 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