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

81°F

27°C

Humidity 84%
Wind Speed NA
Barometer 30.15 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 5 Aug 10:55 am EDT
Extended Forecast for

Saint Marys GA

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Heat index values as high as 100. Light south wind becoming southeast 5 to 9 mph in the afternoon.

    High: 89 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 75. South wind around 6 mph becoming calm after midnight.

    Low: 75 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Partly sunny, with a high near 89. Heat index values as high as 100. Calm wind becoming east 5 to 9 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. East wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 89. Light east wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 17 mph. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.

    Low: 75 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 89. Chance of precipitation is 60%.

    High: 89 °F

    Showers
    Likely 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
    Slight Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Heat index values as high as 100. Light south wind becoming southeast 5 to 9 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 75. South wind around 6 mph becoming calm after midnight.
Thursday
A 50 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Partly sunny, with a high near 89. Heat index values as high as 100. Calm wind becoming east 5 to 9 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. East wind around 5 mph becoming calm in the evening.
Friday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 89. Light east wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 17 mph. Chance of precipitation is 30%.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Saturday
Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 89. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Tuesday
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:
Saint Marys GA
 30.77°N 81.57°W
Last Update:
9:11 am EDT Aug 5, 2026
Forecast Valid:
11am EDT Aug 5, 2026-6pm EDT Aug 11, 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