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

Hazardous Weather Conditions

Current conditions at

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

Lat: 30.4°NLon: 81.42°WElev: 13ft.

Thunderstorm Light Rain

75°F

24°C

Humidity 94%
Wind Speed SW 3 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 3 Aug 2:52 pm EDT
Extended Forecast for

Neptune Beach FL

Flood Watch August 3, 03:12pm until August 4, 12:00am
Flood Advisory until August 3, 04:30pm
Click here for hazard details and duration
Flood Watch
Flood Advisory
  •  
    Flood Watch August 3, 03:12pm until August 4, 12:00am
    Flood Advisory until August 3, 04:30pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 84 °F

    Heavy Rain

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 4am. Some of the storms could produce heavy rainfall. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 78. Northeast wind 5 to 8 mph becoming southeast after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 78 °F

    Heavy Rain
    then Slight
    Chance
    T-storms and
    Patchy Fog

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 84. Light and variable wind becoming east 6 to 11 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 40%.

    High: 84 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms before 5am, then a slight chance of showers. Low around 79. Southeast wind 7 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.

    Low: 79 °F

    T-storms then
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers and thunderstorms likely after 11am. Sunny, with a high near 85. East wind 6 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.

    High: 85 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 79. Chance of precipitation is 60%.

    Low: 79 °F

    T-storms
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 84. Chance of precipitation is 70%.

    High: 84 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 78. Chance of precipitation is 60%.

    Low: 78 °F

    T-storms
    Likely

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 4pm, then showers and thunderstorms likely between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 84. Northeast wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 4am. Some of the storms could produce heavy rainfall. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 78. Northeast wind 5 to 8 mph becoming southeast after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 84. Light and variable wind becoming east 6 to 11 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 40%.
Monday Night
Showers and thunderstorms before 5am, then a slight chance of showers. Low around 79. Southeast wind 7 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.
Tuesday
A chance of showers, then showers and thunderstorms likely after 11am. Sunny, with a high near 85. East wind 6 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 79. Chance of precipitation is 60%.
Wednesday
A chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 84. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 78. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms, mainly after 2pm. High near 83. Chance of precipitation is 80%.
Thursday Night
Showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Low around 78. Chance of precipitation is 80%.
Friday
Showers and thunderstorms likely. Mostly sunny, with a high near 83. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 78. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms. High near 83. Chance of precipitation is 80%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Neptune Beach FL
 30.32°N 81.38°W
Last Update:
1:26 pm EDT Aug 3, 2025
Forecast Valid:
3pm EDT Aug 3, 2025-6pm EDT Aug 9, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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