National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Brunswick, Malcolm McKinnon Airport (KSSI)

Lat: 31.15°NLon: 81.39°WElev: 20ft.

Light Rain

88°F

31°C

Humidity 79%
Wind Speed S 12 G 18 mph
Barometer 30.03 in
Dewpoint 81°F (27°C)
Visibility 9.00 mi
Heat Index106°F (41°C)
Last update 11 Jul 5:55 pm EDT
Extended Forecast for

Saint Simons GA

Heat Advisory July 12, 11:00am until July 12, 07:00pm
Heat Advisory July 11, 06:09pm until July 11, 07:00pm
Click here for hazard details and duration
Heat Advisory
...
  •  
    Heat Advisory July 11, 06:09pm until July 11, 07:00pm

    NOW until 7:00pm Sat

    Heat Advisory

  • Tonight

    Low: 77 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 109. West wind around 11 mph becoming south in the afternoon. Winds could gust as high as 17 mph.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 76. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 93. Heat index values as high as 105. South wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 93 °F

    Slight Chance
    T-storms then
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 74. West wind 7 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 80%.

    Low: 74 °F

    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 77. South wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 20 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 109. West wind around 11 mph becoming south in the afternoon. Winds could gust as high as 17 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 76. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Monday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 93. Heat index values as high as 105. South wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Monday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 74. West wind 7 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 80%.
Tuesday
A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 93.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 97.
Thursday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.
Friday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 96.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons GA
 31.16°N 81.39°W
Last Update:
2:21 pm EDT Jul 11, 2026
Forecast Valid:
6pm EDT Jul 11, 2026-6pm EDT Jul 18, 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