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Tidal Flooding Continues - Updated Briefing

Coastal Flood Warnings have been issued within portions of the St. Johns River basin south of downtown Jacksonville. Dangerous marine and surf conditions will continue through Tuesday. Strengthening onshore winds beginning on Thursday may result in an expansion of Coastal Flood Warnings and Advisories. Please monitor this briefing for the latest updates this weekend and early next week. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 30.4°NLon: 81.42°WElev: 13ft.

Fair

79°F

26°C

Humidity 85%
Wind Speed E 12 mph
Barometer 30.06 in (1017.7 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 7 Oct 2:52 am EDT
Extended Forecast for

Mayport Naval Station FL

Coastal Flood Advisory October 7, 03:30am until October 8, 05:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 7, 03:30am until October 8, 05:00am

    NOW until 5:00am Wed

    Coastal Flood Advisory

  • Overnight

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 84. East wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 84 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73. East wind 7 to 10 mph.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Northeast wind 6 to 14 mph, with gusts as high as 20 mph.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 74. Northeast wind 8 to 10 mph, with gusts as high as 15 mph.

    Low: 74 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Windy. Chance of precipitation is 60%.

    High: 80 °F

    Chance
    Showers and
    Breezy then
    Showers
    Likely and
    Windy

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 71. Windy. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely and
    Windy

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. Windy. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely and
    Windy

Detailed Forecast

Overnight
Mostly clear, with a low around 75. East wind around 11 mph, with gusts as high as 15 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 84. East wind 10 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 73. East wind 7 to 10 mph.
Wednesday
Mostly sunny, with a high near 84. Northeast wind 6 to 14 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 74. Northeast wind 8 to 10 mph, with gusts as high as 15 mph.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Windy. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 71. Windy. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. Windy. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 69. Windy.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 76. Windy.
Saturday Night
Partly cloudy, with a low around 66. Windy.
Sunday
Mostly sunny, with a high near 77. Breezy.
Sunday Night
Partly cloudy, with a low around 66. Breezy.
Columbus Day
Mostly sunny, with a high near 78. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Mayport Naval Station FL
 30.39°N 81.43°W
Last Update:
3:26 am EDT Oct 7, 2025
Forecast Valid:
3am EDT Oct 7, 2025-6pm EDT Oct 13, 2025
 
Forecast Discussion
 
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Additional Resources

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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