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

77°F

25°C

Humidity 100%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Jun 1:35 am EDT
Extended Forecast for

Saint Simons GA

  • Overnight

    Overnight: Partly cloudy, with a low around 76. Southwest wind around 8 mph.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 100. Southwest wind 6 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.

    High: 89 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 77. South wind 7 to 11 mph, with gusts as high as 16 mph.

    Low: 77 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 100. South wind 7 to 10 mph, with gusts as high as 16 mph.

    High: 90 °F

    Sunny then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. South wind 9 to 11 mph, with gusts as high as 17 mph.

    Low: 78 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79.

    Low: 79 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 78.

    Low: 78 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 76. Southwest wind around 8 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 100. Southwest wind 6 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 77. South wind 7 to 11 mph, with gusts as high as 16 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 100. South wind 7 to 10 mph, with gusts as high as 16 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. South wind 9 to 11 mph, with gusts as high as 17 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.
Wednesday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79.
Juneteenth
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.
Thursday Night
A 20 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 78.
Friday
A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Sunday
A 40 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:
1:45 am EDT Jun 16, 2025
Forecast Valid:
1am EDT Jun 16, 2025-6pm EDT Jun 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