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

Fernandina Beach Municipal Airport (KFHB)

Lat: 30.61°NLon: 81.46°WElev: 16ft.

Fair

86°F

30°C

Humidity 70%
Wind Speed NA
Barometer 30.00 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 21 Aug 3:55 pm EDT
Extended Forecast for

4 Miles SW Saint Marys GA

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy and hot, with a high near 95. Heat index values as high as 101. South wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 95 °F

    T-storms
    Likely

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 74. South wind 3 to 8 mph. New rainfall amounts between a quarter and half of an inch possible.

    Low: 74 °F

    Chance
    T-storms then
    Slight Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 4pm. Partly sunny, with a high near 94. Heat index values as high as 105. Southwest wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 94 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Cloudy, then gradual clearing toward daybreak, with a low around 74. Light southwest wind.

    Low: 74 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95. Southwest wind 3 to 6 mph.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 96.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.

    Low: 75 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy and hot, with a high near 95. Heat index values as high as 101. South wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 74. South wind 3 to 8 mph. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers and thunderstorms likely, mainly after 4pm. Partly sunny, with a high near 94. Heat index values as high as 105. Southwest wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Cloudy, then gradual clearing toward daybreak, with a low around 74. Light southwest wind.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95. Southwest wind 3 to 6 mph.
Sunday Night
Partly cloudy, with a low around 74.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 96.
Monday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.
Tuesday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 74.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Saint Marys GA
 30.73°N 81.63°W
Last Update:
2:21 pm EDT Aug 21, 2026
Forecast Valid:
4pm EDT Aug 21, 2026-6pm EDT Aug 27, 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