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

79°F

26°C

Humidity 100%
Wind Speed N 5 mph
Barometer 30.10 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 14 Jun 7:15 pm EDT
Extended Forecast for

Saint Simons GA

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 75. South wind 6 to 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 75 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 89. Heat index values as high as 100. Southwest wind 6 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Partly Sunny
    then T-storms
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 75. South wind 7 to 13 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 100. South wind 5 to 10 mph, with gusts as high as 16 mph.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 75. South wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 40%.

    High: 91 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

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

    Low: 76 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 75. South wind 6 to 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 89. Heat index values as high as 100. Southwest wind 6 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 75. South wind 7 to 13 mph, with gusts as high as 20 mph.
Monday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 100. South wind 5 to 10 mph, with gusts as high as 16 mph.
Monday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 75. South wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 76.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76.
Juneteenth
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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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:
7:15 pm EDT Jun 14, 2025
Forecast Valid:
7pm EDT Jun 14, 2025-6pm EDT Jun 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