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

88°F

31°C

Humidity 66%
Wind Speed SE 9 mph
Barometer 30.14 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 21 Jun 12:55 pm EDT
Extended Forecast for

Saint Simons Island GA

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. Heat index values as high as 101. Southeast wind 9 to 11 mph, with gusts as high as 17 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 74. South wind 5 to 9 mph.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 89. Heat index values as high as 100. Light south wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 17 mph.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. Southeast wind 5 to 9 mph becoming calm after midnight.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. Light southeast wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 16 mph.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Tuesday Night

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

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 91. Heat index values as high as 101. Southeast wind 9 to 11 mph, with gusts as high as 17 mph.
Tonight
Mostly clear, with a low around 74. South wind 5 to 9 mph.
Sunday
Mostly sunny, with a high near 89. Heat index values as high as 100. Light south wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 17 mph.
Sunday Night
Mostly clear, with a low around 75. Southeast wind 5 to 9 mph becoming calm after midnight.
Monday
Sunny, with a high near 89. Light southeast wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 16 mph.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
Thursday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Friday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons Island GA
 31.23°N 81.36°W
Last Update:
1:05 pm EDT Jun 21, 2025
Forecast Valid:
1pm EDT Jun 21, 2025-6pm EDT Jun 27, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation