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

77°F

25°C

Humidity 89%
Wind Speed SW 12 mph
Barometer 29.92 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Jun 8:15 am EDT
Extended Forecast for

Saint Simons GA

  • Today

    Today: Showers and thunderstorms likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 87. Breezy, with a west wind 15 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a low around 80. Southwest wind 7 to 10 mph, with gusts as high as 15 mph.

    Low: 80 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly between 3pm and 5pm. Partly sunny, with a high near 90. Heat index values as high as 105. Southwest wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Partly Sunny
    then T-storms
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 80. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 80 °F

    Chance
    T-storms then
    Chance
    Showers and
    Breezy

  • Juneteenth

    Juneteenth: Showers and thunderstorms likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 88. Breezy, with a southwest wind around 18 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 88 °F

    Breezy.
    Showers
    Likely then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 2am, then a chance of showers. Mostly cloudy, with a low around 79. Chance of precipitation is 60%.

    Low: 79 °F

    T-storms
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers and thunderstorms likely after 8am. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 78. Chance of precipitation is 60%.

    Low: 78 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 87. Breezy, with a west wind 15 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a low around 80. Southwest wind 7 to 10 mph, with gusts as high as 15 mph.
Thursday
Showers and thunderstorms likely, mainly between 3pm and 5pm. Partly sunny, with a high near 90. Heat index values as high as 105. Southwest wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 80. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Juneteenth
Showers and thunderstorms likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 88. Breezy, with a southwest wind around 18 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely before 2am, then a chance of showers. Mostly cloudy, with a low around 79. Chance of precipitation is 60%.
Saturday
A chance of showers, then showers and thunderstorms likely after 8am. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 78. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 80.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Monday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 81.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons GA
 31.16°N 81.37°W
Last Update:
8:36 am EDT Jun 17, 2026
Forecast Valid:
8am EDT Jun 17, 2026-6pm EDT Jun 23, 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