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Coastal Flood Warnings and Heavy Rainfall this Weekend - Updated Briefing

Coastal Flood Warnings have been issued through early next week along portions of the northeast Florida Atlantic coast and within the St. Johns River basin. Dangerous marine and surf conditions will continue, with heavy rainfall possible this weekend, which may exacerbate flooding at coastal locations. Please monitor this briefing for the latest updates this weekend and early next week. Read More >

Hazardous Weather Conditions

Current conditions at

Brunswick, Malcolm McKinnon Airport (KSSI)

Lat: 31.15°NLon: 81.39°WElev: 20ft.

Overcast

75°F

24°C

Humidity 100%
Wind Speed NE 7 mph
Barometer 30.03 in
Dewpoint 75°F (24°C)
Visibility 9.00 mi
Last update 5 Oct 3:55 am EDT
Extended Forecast for

Saint Simons GA

Coastal Flood Advisory October 5, 04:10am until October 7, 05:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 5, 04:10am until October 7, 05:00pm

    NOW until 5:00pm Tue

    Coastal Flood Advisory

  • Overnight

    Low: 73 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 82. Breezy, with an east wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms between 9pm and 11pm. Mostly cloudy, with a low around 73. Breezy, with an east wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms and
    Breezy then
    Mostly Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Breezy, with an east wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: A slight chance of showers, with thunderstorms also possible after 11pm. Partly cloudy, with a low around 74. East wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 2pm. Sunny, with a high near 83.

    High: 83 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Overnight
A 40 percent chance of showers. Mostly cloudy, with a low around 73. East wind around 14 mph, with gusts as high as 21 mph.
Sunday
A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 82. Breezy, with an east wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms between 9pm and 11pm. Mostly cloudy, with a low around 73. Breezy, with an east wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Breezy, with an east wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Monday Night
A slight chance of showers, with thunderstorms also possible after 11pm. Partly cloudy, with a low around 74. East wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers and thunderstorms before 2pm. Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 82. Breezy. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Breezy.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. Breezy.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons GA
 31.16°N 81.39°W
Last Update:
1:26 am EDT Oct 5, 2025
Forecast Valid:
4am EDT Oct 5, 2025-6pm EDT Oct 11, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation