Current conditions at

Mayport Naval Station - Adm David L. McDonald Field (KNRB)

Lat: 30.4°NLon: 81.42°WElev: 13ft.

Fair

89°F

32°C

Humidity 70%
Wind Speed E 8 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 16 Aug 12:52 pm EDT
Extended Forecast for

Atlantic Beach FL

Heat Advisory until August 16, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 16, 07:00pm

    NOW until 7:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 90 °F

    T-storms
    Likely

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 77. East wind 5 to 7 mph becoming calm  in the evening.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 77 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 3pm, then showers and thunderstorms likely after 3pm.  High near 87. Heat index values as high as 100. Northeast wind 5 to 11 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Chance
    T-storms then
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 2am.  Partly cloudy, with a low around 78. East wind 6 to 9 mph.

    Low: 78 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 8am.  Sunny, with a high near 88. Northeast wind 7 to 14 mph.

    High: 88 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am.  Sunny, with a high near 89. Breezy.  Chance of precipitation is 40%.

    High: 89 °F

    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers.  Mostly clear, with a low around 78. Chance of precipitation is 30%.

    Low: 78 °F

    Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly after 4pm. Mostly sunny, with a high near 90. Heat index values as high as 106. East wind 7 to 10 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. Mostly cloudy, with a low around 77. East wind 5 to 7 mph becoming calm in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 3pm, then showers and thunderstorms likely after 3pm. High near 87. Heat index values as high as 100. Northeast wind 5 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 78. East wind 6 to 9 mph.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 8am. Sunny, with a high near 88. Northeast wind 7 to 14 mph.
Monday Night
Mostly clear, with a low around 78.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Sunny, with a high near 89. Breezy. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers. Mostly clear, with a low around 78. Chance of precipitation is 30%.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Sunny, with a high near 89. Chance of precipitation is 40%.
Wednesday Night
A chance of thunderstorms before 8pm. Mostly clear, with a low around 77. Chance of precipitation is 30%.
Thursday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 77.
Friday
Showers and thunderstorms likely. Sunny, with a high near 91. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Atlantic Beach FL
 30.34°N 81.41°W
1:26 pm EDT Aug 16, 2025
1pm EDT Aug 16, 2025-6pm EDT Aug 22, 2025
 
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