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

78°F

26°C

Humidity 93%
Wind Speed SW 8 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 19 Jun 5:52 am EDT
Extended Forecast for

4 Miles NW Mayport Naval Station FL

  • Juneteenth

    Juneteenth: Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 91. Heat index values as high as 102. Breezy, with a west wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Breezy.
    Chance
    Showers then
    Heavy Rain

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly between 2am and 5am. Mostly cloudy, with a low around 75. Southwest wind 6 to 10 mph, with gusts as high as 16 mph.

    Low: 75 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 88. Heat index values as high as 100. West wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Showers
    Likely then
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 75. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 75 °F

    T-storms
    Likely then
    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 89 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 78.

    Low: 78 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Juneteenth
Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 91. Heat index values as high as 102. Breezy, with a west wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms, mainly between 2am and 5am. Mostly cloudy, with a low around 75. Southwest wind 6 to 10 mph, with gusts as high as 16 mph.
Saturday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 88. Heat index values as high as 100. West wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 75. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Calm wind becoming east 5 to 8 mph in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.
Monday
Mostly sunny, with a high near 93.
Monday Night
Partly cloudy, with a low around 78.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 78.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Thursday
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:
4 Miles NW Mayport Naval Station FL
 30.44°N 81.48°W
Last Update:
8:16 am EDT Jun 19, 2026
Forecast Valid:
8am EDT Jun 19, 2026-6pm EDT Jun 25, 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