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Extreme Heat Risk this Week

Extreme heat and little overnight relief will lead to an extreme risk for heat-related impacts through the rest of the week. Extreme Heat Warning in effect on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Brunswick, Malcolm McKinnon Airport (KSSI)

Lat: 31.15°NLon: 81.39°WElev: 20ft.

Fair

88°F

31°C

Humidity 79%
Wind Speed S 9 mph
Barometer 29.94 in
Dewpoint 81°F (27°C)
Visibility 10.00 mi
Heat Index106°F (41°C)
Last update 19 Aug 9:15 pm EDT
Extended Forecast for

Brunswick GA

Heat Advisory August 20, 11:00am until August 20, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 78. South wind around 6 mph becoming light and variable after midnight.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Heat index values as high as 106. Light and variable wind becoming southeast 5 to 9 mph in the morning.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 78. South wind 5 to 9 mph.

    Low: 78 °F

    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 94. Heat index values as high as 103. South wind 5 to 11 mph, with gusts as high as 15 mph.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 76. South wind 5 to 9 mph becoming light southwest after midnight.

    Low: 76 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 70%.

    High: 92 °F

    Mostly Sunny
    then T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.

    Low: 75 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75.

    Low: 75 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 78. South wind around 6 mph becoming light and variable after midnight.
Thursday
Sunny and hot, with a high near 97. Heat index values as high as 106. Light and variable wind becoming southeast 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 78. South wind 5 to 9 mph.
Friday
A 50 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 94. Heat index values as high as 103. South wind 5 to 11 mph, with gusts as high as 15 mph.
Friday Night
A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 76. South wind 5 to 9 mph becoming light southwest after midnight.
Saturday
Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95.
Monday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Brunswick GA
 31.15°N 81.5°W
Last Update:
8:01 pm EDT Aug 19, 2026
Forecast Valid:
9pm EDT Aug 19, 2026-6pm EDT Aug 26, 2026
 
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