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.

Fair

87°F

31°C

Humidity 55%
Wind Speed W 8 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 20 Jun 12:52 pm EDT
Extended Forecast for

Mayport Naval Station FL

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 87. Heat index values as high as 100. West wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, then gradually becoming mostly clear, with a low around 74. West wind 3 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 74 °F

    Heavy Rain
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny, with a high near 89. West wind 7 to 9 mph becoming southeast in the afternoon.

    High: 89 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 76. South wind 7 to 9 mph. Chance of precipitation is 10%.

    Low: 76 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93. West wind 8 to 10 mph, with gusts as high as 16 mph.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 87. Heat index values as high as 100. West wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, then gradually becoming mostly clear, with a low around 74. West wind 3 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny, with a high near 89. West wind 7 to 9 mph becoming southeast in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 76. South wind 7 to 9 mph. Chance of precipitation is 10%.
Monday
Mostly sunny, with a high near 93. West wind 8 to 10 mph, with gusts as high as 16 mph.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77.
Wednesday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Wednesday Night
A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 77.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mayport Naval Station FL
 30.41°N 81.43°W
Last Update:
9:01 am EDT Jun 20, 2026
Forecast Valid:
1pm EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
Forecast Discussion
 
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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