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.

Overcast

70°F

21°C

Humidity 73%
Wind Speed S 8 mph
Barometer 30.07 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 18 Feb 12:35 pm EST
Extended Forecast for

Saint Simons GA

  • This Afternoon

    This Afternoon: A slight chance of sprinkles before 4pm. Partly sunny, with a temperature falling to around 69 by 5pm. South wind 11 to 13 mph, with gusts as high as 20 mph.

    High: 72 °F⇓

    Slight Chance
    Sprinkles

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. Southwest wind 6 to 8 mph.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers between 2pm and 3pm. Patchy fog between 10am and 11am. Otherwise, mostly cloudy, with a high near 74. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 20%.

    High: 74 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56. Southwest wind around 6 mph.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 78. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 78 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 80.

    High: 80 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.

    Low: 56 °F

    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers, mainly before 1pm. Mostly sunny, with a high near 67.

    High: 67 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A slight chance of sprinkles before 4pm. Partly sunny, with a temperature falling to around 69 by 5pm. South wind 11 to 13 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 55. Southwest wind 6 to 8 mph.
Thursday
A slight chance of showers between 2pm and 3pm. Patchy fog between 10am and 11am. Otherwise, mostly cloudy, with a high near 74. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 56. Southwest wind around 6 mph.
Friday
A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 78. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 59.
Saturday
A 50 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 80.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers, mainly before 1pm. Mostly sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 55.
Monday Night
Areas of frost. Otherwise, mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons GA
 31.19°N 81.39°W
Last Update:
12:26 pm EST Feb 18, 2026
Forecast Valid:
12pm EST Feb 18, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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