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

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

Fernandina Beach Municipal Airport (KFHB)

Lat: 30.61°NLon: 81.46°WElev: 16ft.

Fair

79°F

26°C

Humidity 84%
Wind Speed NA
Barometer 29.96 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 20 Aug 1:35 am EDT
Extended Forecast for

5 Miles ESE Kings Bay GA

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

  • Overnight

    Overnight: Partly cloudy, with a low around 79. Southwest wind around 9 mph.

    Low: 79 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 111. West wind 6 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 17 mph.

    High: 96 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 79. South wind 8 to 14 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 90. Heat index values as high as 105. Southwest wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 76. Southwest wind 6 to 9 mph.

    Low: 76 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 70%.

    High: 90 °F

    Mostly Sunny
    then T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.

    Low: 75 °F

    T-storms
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 79. Southwest wind around 9 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 111. West wind 6 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 17 mph.
Thursday Night
Mostly cloudy, with a low around 79. South wind 8 to 14 mph, with gusts as high as 20 mph.
Friday
A 40 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 90. Heat index values as high as 105. Southwest wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 76. Southwest wind 6 to 9 mph.
Saturday
Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. 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 90.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.
Monday Night
A 30 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 89.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Kings Bay GA
 30.78°N 81.46°W
Last Update:
12:46 am EDT Aug 20, 2026
Forecast Valid:
1am EDT Aug 20, 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