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.

Mostly Cloudy

83°F

28°C

Humidity 88%
Wind Speed SE 9 mph
Barometer 30.08 in (1018.5 mb)
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 22 Jun 8:52 pm EDT
Extended Forecast for

Neptune Beach FL

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 78. Southwest wind around 10 mph.

    Low: 78 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 89. Heat index values as high as 102. West wind 11 to 13 mph, with gusts as high as 18 mph.

    High: 89 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. West wind around 11 mph.

    Low: 78 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. West wind 5 to 8 mph becoming light and variable.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 78. Southeast wind 5 to 10 mph becoming light south after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 78. Southwest wind around 10 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 89. Heat index values as high as 102. West wind 11 to 13 mph, with gusts as high as 18 mph.
Tuesday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. West wind around 11 mph.
Wednesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. West wind 5 to 8 mph becoming light and variable.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 78. Southeast wind 5 to 10 mph becoming light south after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 30%.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79.
Saturday
Sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 79.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 80.
Monday
Sunny, with a high near 87.
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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:
8:51 pm EDT Jun 22, 2026
Forecast Valid:
9pm EDT Jun 22, 2026-6pm EDT Jun 29, 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