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

82°F

28°C

Humidity 89%
Wind Speed SE 12 mph
Barometer 30.03 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 15 Jul 11:15 pm EDT
Extended Forecast for

Saint Simons GA

  • Tonight

    Tonight: Partly cloudy, with a low around 78. Breezy, with a southeast wind around 17 mph, with gusts as high as 26 mph.

    Low: 78 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 88. Heat index values as high as 100. Breezy, with a south wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 88 °F

    Breezy.
    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers between 9pm and 11pm. Partly cloudy, with a low around 78. Breezy, with a southeast wind 11 to 15 mph, with gusts as high as 23 mph.

    Low: 78 °F

    Slight Chance
    Showers and
    Breezy then
    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Heat index values as high as 105. South wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 79. South wind 6 to 11 mph, with gusts as high as 17 mph.

    Low: 79 °F

    Slight 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 79.

    Low: 79 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 80.

    Low: 80 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 78. Breezy, with a southeast wind around 17 mph, with gusts as high as 26 mph.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 88. Heat index values as high as 100. Breezy, with a south wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Wednesday Night
A 20 percent chance of showers between 9pm and 11pm. Partly cloudy, with a low around 78. Breezy, with a southeast wind 11 to 15 mph, with gusts as high as 23 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Heat index values as high as 105. South wind 9 to 14 mph, with gusts as high as 21 mph.
Thursday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 79. South wind 6 to 11 mph, with gusts as high as 17 mph.
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 79.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.
Saturday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 80.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 79.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons GA
 31.16°N 81.39°W
Last Update:
11:26 pm EDT Jul 15, 2025
Forecast Valid:
11pm EDT Jul 15, 2025-6pm EDT Jul 22, 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