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

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

Lat: 30.4°NLon: 81.42°WElev: 13ft.

Partly Cloudy

80°F

27°C

Humidity 74%
Wind Speed S 3 mph
Barometer 30.07 in (1018.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 21 May 8:52 am EDT
Extended Forecast for

Neptune Beach FL

  • Today

    Today: Sunny, with a high near 83. Breezy, with a south wind 6 to 15 mph becoming east in the afternoon. Winds could gust as high as 21 mph.

    High: 83 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 75. Breezy, with a south wind 11 to 16 mph, with gusts as high as 22 mph.

    Low: 75 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Breezy, with a southeast wind 7 to 17 mph, with gusts as high as 21 mph.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 77. Breezy, with a southeast wind 13 to 18 mph, with gusts as high as 21 mph.

    Low: 77 °F

    Breezy.
    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Breezy, with a southeast wind 9 to 17 mph, with gusts as high as 21 mph.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 77. Breezy. Chance of precipitation is 30%.

    Low: 77 °F

    Chance
    T-storms and
    Breezy then
    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of thunderstorms, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 80. Breezy. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 77. Windy. Chance of precipitation is 30%.

    Low: 77 °F

    Chance
    T-storms and
    Windy then
    Partly Cloudy
    and Breezy

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 80. Windy.

    High: 80 °F

    Mostly Sunny
    and Windy

Detailed Forecast

Today
Sunny, with a high near 83. Breezy, with a south wind 6 to 15 mph becoming east in the afternoon. Winds could gust as high as 21 mph.
Tonight
Mostly cloudy, with a low around 75. Breezy, with a south wind 11 to 16 mph, with gusts as high as 22 mph.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Breezy, with a southeast wind 7 to 17 mph, with gusts as high as 21 mph.
Friday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 77. Breezy, with a southeast wind 13 to 18 mph, with gusts as high as 21 mph.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Breezy, with a southeast wind 9 to 17 mph, with gusts as high as 21 mph.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 77. Breezy. Chance of precipitation is 30%.
Sunday
A slight chance of thunderstorms, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 80. Breezy. Chance of precipitation is 30%.
Sunday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 77. Windy. Chance of precipitation is 30%.
Memorial Day
Mostly sunny, with a high near 80. Windy.
Monday Night
Partly cloudy, with a low around 77. Windy.
Tuesday
Mostly sunny, with a high near 81. Windy.
Tuesday Night
Partly cloudy, with a low around 76. Windy.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Neptune Beach FL
 30.32°N 81.38°W
Last Update:
2:21 am EDT May 21, 2026
Forecast Valid:
8am EDT May 21, 2026-6pm EDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation