NWS JAX Weather Impact Briefing

Isolated Severe Thunderstorms Possible Sunday Afternoon & Evening, and Scattered Severe Thunderstorms Possible Monday Read More >

Current conditions at

Brunswick, Malcolm McKinnon Airport (KSSI)

Lat: 31.15°NLon: 81.39°WElev: 20ft.

Overcast

66°F

19°C

Humidity 100%
Wind Speed E 6 mph
Barometer 30.01 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 15 Mar 5:35 am EDT
Extended Forecast for

Sea Island GA

  • Overnight

    Overnight: A 30 percent chance of showers.  Mostly cloudy, with a low around 61. East wind around 7 mph.

    Low: 61 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 5pm.  Patchy fog between 8am and 2pm.  Otherwise, partly sunny, with a high near 76. East wind 6 to 14 mph becoming south in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 64. South wind around 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am.  High near 76. Breezy, with a south wind 14 to 17 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%.

    High: 76 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am.  Partly cloudy, with a low around 37. West wind around 11 mph, with gusts as high as 24 mph.  Chance of precipitation is 30%.

    Low: 37 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers. Mostly cloudy, with a low around 61. East wind around 7 mph.
Sunday
A chance of showers, with thunderstorms also possible after 5pm. Patchy fog between 8am and 2pm. Otherwise, partly sunny, with a high near 76. East wind 6 to 14 mph becoming south in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. South wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 76. Breezy, with a south wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 90%.
Monday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 37. West wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Sea Island GA
 31.18°N 81.36°W
2:21 am EDT Mar 15, 2026
5am EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database