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.

Mostly Cloudy

81°F

27°C

Humidity 84%
Wind Speed SW 9 mph
Barometer 29.95 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 19 Jun 3:35 am EDT
Extended Forecast for

Saint Simons GA

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 81. Southwest wind around 14 mph, with gusts as high as 21 mph.

    Low: 81 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 90. Heat index values as high as 102. Breezy, with a west wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 90 °F

    Heavy Rain
    and Breezy

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly between midnight and 4am. Mostly cloudy, with a low around 75. West wind 7 to 11 mph, with gusts as high as 17 mph.

    Low: 75 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 91. Heat index values as high as 101. West wind 5 to 7 mph becoming north in the afternoon. Chance of precipitation is 60%.

    High: 91 °F

    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 74. Light southwest wind. Chance of precipitation is 60%.

    Low: 74 °F

    T-storms
    Likely then
    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday 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. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 78.

    Low: 78 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 81. Southwest wind around 14 mph, with gusts as high as 21 mph.
Juneteenth
Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 90. Heat index values as high as 102. Breezy, with a west wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly between midnight and 4am. Mostly cloudy, with a low around 75. West wind 7 to 11 mph, with gusts as high as 17 mph.
Saturday
Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 91. Heat index values as high as 101. West wind 5 to 7 mph becoming north in the afternoon. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 74. Light southwest wind. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91.
Sunday 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. Chance of precipitation is 30%.
Monday
Mostly sunny and hot, with a high near 95.
Monday Night
Partly cloudy, with a low around 78.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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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 19, 2026
Forecast Valid:
3am EDT Jun 19, 2026-6pm EDT Jun 25, 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