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.

Fair

72°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 70°F (21°C)
Visibility 8.00 mi
Last update 21 Jun 5:15 am EDT
Extended Forecast for

Saint Simons Island GA

  • Today

    Today: A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 89. Southwest wind 5 to 9 mph. Chance of precipitation is 30%.

    High: 89 °F

    Areas Fog
    then Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 74. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.

    Low: 74 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 110. West wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. Southwest wind around 6 mph.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96. West wind 7 to 9 mph, with gusts as high as 15 mph.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday 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

  • 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

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    T-storms

  • Thursday

    Thursday: 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

Detailed Forecast

Today
A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 89. Southwest wind 5 to 9 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 74. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.
Monday
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 110. West wind 6 to 9 mph, with gusts as high as 15 mph.
Monday Night
Partly cloudy, with a low around 77. Southwest wind around 6 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96. West wind 7 to 9 mph, with gusts as high as 15 mph.
Tuesday 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%.
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 2am. Mostly cloudy, with a low around 76.
Thursday
A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 93.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 76.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Friday Night
A 30 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 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons Island GA
 31.21°N 81.36°W
Last Update:
5:16 am EDT Jun 21, 2026
Forecast Valid:
5am EDT Jun 21, 2026-6pm EDT Jun 27, 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