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

81°F

27°C

Humidity 94%
Wind Speed S 6 mph
Barometer 30.07 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 17 Jun 1:55 am EDT
Extended Forecast for

Saint Simons GA

  • Overnight

    Overnight: Mostly cloudy, with a low around 74. Southwest wind around 6 mph.

    Low: 74 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 91. Heat index values as high as 102. Southwest wind 5 to 11 mph becoming south in the afternoon. Winds could gust as high as 17 mph.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms, mainly between 10pm and 11pm. Partly cloudy, with a low around 75. South wind 7 to 10 mph, with gusts as high as 16 mph.

    Low: 75 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 91. Heat index values as high as 102. South wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 75. South wind 6 to 10 mph, with gusts as high as 16 mph.

    Low: 75 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 92. Chance of precipitation is 40%.

    High: 92 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 75.

    Low: 75 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 74. Southwest wind around 6 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 91. Heat index values as high as 102. Southwest wind 5 to 11 mph becoming south in the afternoon. Winds could gust as high as 17 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms, mainly between 10pm and 11pm. Partly cloudy, with a low around 75. South wind 7 to 10 mph, with gusts as high as 16 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 91. Heat index values as high as 102. South wind 6 to 10 mph, with gusts as high as 16 mph.
Wednesday Night
Mostly cloudy, with a low around 75. South wind 6 to 10 mph, with gusts as high as 16 mph.
Juneteenth
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Thursday Night
A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
Friday Night
A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 75.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 90.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
Sunday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Simons GA
 31.19°N 81.39°W
Last Update:
1:55 am EDT Jun 17, 2025
Forecast Valid:
2am EDT Jun 17, 2025-6pm EDT Jun 23, 2025
 
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