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 100%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Last update 15 Jul 3:55 am EDT
Extended Forecast for

Saint Simons Island GA

  • Today

    Today: A slight chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. Heat index values as high as 100. East wind 5 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 77. Southeast wind around 11 mph, with gusts as high as 17 mph.

    Low: 77 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Sunny, with a high near 89. Heat index values as high as 102. South wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 89 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76. South wind 11 to 14 mph, with gusts as high as 21 mph.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Sunny, with a high near 91. Southeast wind 7 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. Heat index values as high as 100. East wind 5 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Tonight
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 77. Southeast wind around 11 mph, with gusts as high as 17 mph.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Sunny, with a high near 89. Heat index values as high as 102. South wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76. South wind 11 to 14 mph, with gusts as high as 21 mph.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Sunny, with a high near 91. Southeast wind 7 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76.
Saturday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Monday
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:
1:26 am EDT Jul 15, 2025
Forecast Valid:
4am EDT Jul 15, 2025-6pm EDT Jul 21, 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