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 63%
Wind Speed NE 16 G 26 mph
Barometer 30.12 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 13 Mar 1:15 am EDT
Extended Forecast for

Saint Simons Island GA

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 51. Breezy, with a northeast wind 13 to 15 mph, with gusts as high as 28 mph.

    Low: 51 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Sunny, with a high near 69. East wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, sunny, with a high near 73. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 73 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 59. Light east wind.

    Low: 59 °F

    Mostly Clear
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Mostly sunny, with a high near 77. Chance of precipitation is 70%.

    High: 77 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    T-storms

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. Breezy. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely and
    Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.

    Low: 38 °F

    Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 51. Breezy, with a northeast wind 13 to 15 mph, with gusts as high as 28 mph.
Friday
Sunny, with a high near 69. East wind 8 to 10 mph, with gusts as high as 20 mph.
Friday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 54. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 73. Calm wind becoming east 5 to 8 mph in the afternoon.
Saturday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 59. Light east wind.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Mostly sunny, with a high near 77. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. Breezy. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 65.
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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:
8:36 pm EDT Mar 12, 2026
Forecast Valid:
1am EDT Mar 13, 2026-6pm EDT Mar 19, 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