National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Brunswick, Malcolm McKinnon Airport (KSSI)

Lat: 31.15°NLon: 81.39°WElev: 20ft.

Partly Cloudy

95°F

35°C

Humidity 50%
Wind Speed NW 9 mph
Barometer 30.05 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 29 Jun 12:15 pm EDT
Extended Forecast for

Saint Simons GA

Heat Advisory until June 29, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until June 29, 07:00pm

    NOW until 7:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 95 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 78. South wind around 6 mph becoming calm in the evening.

    Low: 78 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91. Heat index values as high as 105. Northeast wind 9 to 14 mph, with gusts as high as 18 mph.

    High: 91 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79. East wind 6 to 8 mph.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90. Breezy, with a northeast wind 10 to 15 mph, with gusts as high as 21 mph.

    High: 90 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers before 2pm. Sunny, with a high near 90.

    High: 90 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 109. West wind around 8 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 78. South wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 91. Heat index values as high as 105. Northeast wind 9 to 14 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 79. East wind 6 to 8 mph.
Wednesday
Sunny, with a high near 90. Breezy, with a northeast wind 10 to 15 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 78.
Thursday
A 20 percent chance of showers before 2pm. Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 78.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 90.
Friday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 79.
Independence Day
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Saturday Night
Partly cloudy, with a low around 79.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons GA
 31.16°N 81.39°W
Last Update:
9:47 am EDT Jun 29, 2026
Forecast Valid:
12pm EDT Jun 29, 2026-6pm EDT Jul 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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