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 89%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 25 Jun 5:15 am EDT
Extended Forecast for

Saint Simons GA

  • Today

    Today: Mostly sunny, with a high near 91. Heat index values as high as 100. Light east wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 17 mph.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 76. Southeast wind 6 to 10 mph, with gusts as high as 16 mph.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday 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. South wind 3 to 8 mph. Winds could gust as high as 15 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny and hot, with a high near 96. Southwest wind 5 to 8 mph.

    High: 96 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 8am. Partly sunny and hot, with a high near 95.

    High: 95 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 91. Heat index values as high as 100. Light east wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 17 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 76. Southeast wind 6 to 10 mph, with gusts as high as 16 mph.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Friday 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. South wind 3 to 8 mph. Winds could gust as high as 15 mph. Chance of precipitation is 30%.
Saturday
Sunny and hot, with a high near 96. Southwest wind 5 to 8 mph.
Saturday Night
Mostly clear, with a low around 77.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 77.
Monday
A 50 percent chance of showers and thunderstorms after 8am. Partly sunny and hot, with a high near 95.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 78.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons GA
 31.19°N 81.39°W
Last Update:
2:21 am EDT Jun 25, 2026
Forecast Valid:
5am EDT Jun 25, 2026-6pm EDT Jul 1, 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