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

52°F

11°C

Humidity 32%
Wind Speed NW 6 G 12 mph
Barometer 30.16 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 17 Mar 7:35 pm EDT
Extended Forecast for

Saint Simons Island GA

  • Tonight

    Tonight: Patchy frost after 3am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 35. North wind 5 to 7 mph.

    Low: 35 °F

    Partly Cloudy
    then Patchy
    Frost

  • Wednesday

    Wednesday: Patchy frost between 7am and 9am. Otherwise, increasing clouds, with a high near 59. North wind 7 to 11 mph, with gusts as high as 17 mph.

    High: 59 °F

    Patchy Frost
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Northeast wind around 6 mph.

    Low: 42 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 64. North wind 7 to 10 mph, with gusts as high as 16 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy frost after 3am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 35. North wind 5 to 7 mph.
Wednesday
Patchy frost between 7am and 9am. Otherwise, increasing clouds, with a high near 59. North wind 7 to 11 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Northeast wind around 6 mph.
Thursday
Sunny, with a high near 64. North wind 7 to 10 mph, with gusts as high as 16 mph.
Thursday Night
Mostly clear, with a low around 45. Calm wind.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 80.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 71.
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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:
2:21 pm EDT Mar 17, 2026
Forecast Valid:
7pm EDT Mar 17, 2026-6pm EDT Mar 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation