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

72°F

22°C

Humidity 88%
Wind Speed SW 5 mph
Barometer 29.95 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 20 Feb 10:55 pm EST
Extended Forecast for

Saint Simons Island GA

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Southwest wind around 5 mph.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 79. Southwest wind 5 to 10 mph, with gusts as high as 17 mph.

    High: 79 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Showers, mainly after 7pm. Low around 54. Southwest wind around 6 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Showers

  • Sunday

    Sunday: A 50 percent chance of showers before 1pm. Mostly cloudy through mid morning, then gradual clearing, with a temperature rising to near 65 by 10am, then falling to around 57 during the remainder of the day. Breezy, with a northwest wind 7 to 16 mph, with gusts as high as 29 mph.

    High: 65 °F⇓

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 33. Northwest wind 11 to 13 mph, with gusts as high as 28 mph.

    Low: 33 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 29.

    Low: 29 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. Southwest wind around 5 mph.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 79. Southwest wind 5 to 10 mph, with gusts as high as 17 mph.
Saturday Night
Showers, mainly after 7pm. Low around 54. Southwest wind around 6 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A 50 percent chance of showers before 1pm. Mostly cloudy through mid morning, then gradual clearing, with a temperature rising to near 65 by 10am, then falling to around 57 during the remainder of the day. Breezy, with a northwest wind 7 to 16 mph, with gusts as high as 29 mph.
Sunday Night
Clear, with a low around 33. Northwest wind 11 to 13 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 51.
Monday Night
Clear, with a low around 29.
Tuesday
Sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 36.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 71.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 67.
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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:
10:17 pm EST Feb 20, 2026
Forecast Valid:
11pm EST Feb 20, 2026-6pm EST Feb 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