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

79°F

26°C

Humidity 94%
Wind Speed SW 8 mph
Barometer 30.09 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 18 Jun 6:55 am EDT
Extended Forecast for

Saint Simons GA

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Heat index values as high as 103. Southwest wind 6 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 78. South wind 9 to 11 mph, with gusts as high as 17 mph.

    Low: 78 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 102. South wind 7 to 11 mph, with gusts as high as 17 mph.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 78. South wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 40%.

    Low: 78 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 90. West wind 6 to 9 mph becoming south in the afternoon. Chance of precipitation is 50%.

    High: 90 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

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

    Low: 77 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Chance of precipitation is 30%.

    High: 89 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Heat index values as high as 103. Southwest wind 6 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly cloudy, with a low around 78. South wind 9 to 11 mph, with gusts as high as 17 mph.
Juneteenth
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 102. South wind 7 to 11 mph, with gusts as high as 17 mph.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 78. South wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 40%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 90. West wind 6 to 9 mph becoming south in the afternoon. Chance of precipitation is 50%.
Friday Night
A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 76.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 77.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Chance of precipitation is 30%.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 78.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 77.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons GA
 31.16°N 81.39°W
Last Update:
6:45 am EDT Jun 18, 2025
Forecast Valid:
7am EDT Jun 18, 2025-6pm EDT Jun 24, 2025
 
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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