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

57°F

14°C

Humidity 94%
Wind Speed SE 5 mph
Barometer 30.13 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 18 Feb 1:35 am EST
Extended Forecast for

Saint Simons Island GA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 50. Light south wind.

    Low: 50 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 73. South wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 73 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 55. Southwest wind 3 to 5 mph.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers, mainly between 7am and 1pm. Mostly cloudy, with a high near 74. Light southwest wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 17 mph.

    High: 74 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 57. Southwest wind around 6 mph.

    Low: 57 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: A 40 percent chance of showers. Partly sunny, with a high near 79.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 57.

    Low: 57 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 78.

    High: 78 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 50. Light south wind.
Wednesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 73. South wind 5 to 9 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly cloudy, with a low around 55. Southwest wind 3 to 5 mph.
Thursday
A 30 percent chance of showers, mainly between 7am and 1pm. Mostly cloudy, with a high near 74. Light southwest wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 17 mph.
Thursday Night
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 57. Southwest wind around 6 mph.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 79.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 57.
Saturday
A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 78.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers, mainly before 1pm. Mostly sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 35.
Monday
Sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons Island GA
 31.21°N 81.36°W
Last Update:
12:26 am EST Feb 18, 2026
Forecast Valid:
1am EST Feb 18, 2026-6pm EST Feb 24, 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