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 84%
Wind Speed S 5 mph
Barometer 30.08 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 23 Jul 7:55 am EDT
Extended Forecast for

Saint Simons GA

  • Today

    Today: Sunny, with a high near 91. Heat index values as high as 103. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 78. South wind 5 to 9 mph.

    Low: 78 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 94. Heat index values as high as 107. Light south wind becoming southeast 5 to 10 mph in the afternoon.

    High: 94 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 78. Southeast wind 5 to 7 mph.

    Low: 78 °F

    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96. South wind 3 to 7 mph.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 91. Heat index values as high as 103. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Tonight
Partly cloudy, with a low around 78. South wind 5 to 9 mph.
Friday
Mostly sunny, with a high near 94. Heat index values as high as 107. Light south wind becoming southeast 5 to 10 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 78. Southeast wind 5 to 7 mph.
Saturday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96. South wind 3 to 7 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 77.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 97.
Sunday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 78.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Monday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79.
Tuesday
Sunny and hot, with a high near 95.
Tuesday Night
Mostly clear, with a low around 79.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.
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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:
2:21 am EDT Jul 23, 2026
Forecast Valid:
8am EDT Jul 23, 2026-6pm EDT Jul 29, 2026
 
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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