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Hazardous Weather Conditions

Current conditions at

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

Lat: 30.4°NLon: 81.42°WElev: 13ft.

A Few Clouds

80°F

27°C

Humidity 85%
Wind Speed SW 8 mph
Barometer 30.13 in (1020.0 mb)
Dewpoint 75°F (24°C)
Visibility NA
Heat Index85°F (29°C)
Last update 12 Jul 7:52 am EDT
Extended Forecast for

5 Miles NW Mayport Naval Station FL

Heat Advisory July 12, 11:00am until July 12, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Showers and thunderstorms likely, mainly after 4pm. Partly sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 95 °F

    Mostly Sunny
    then T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 76. West wind 6 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 76 °F

    T-storms
    Likely then
    Partly Cloudy

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 5pm. Increasing clouds, with a high near 93. Heat index values as high as 105. Southwest wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Mostly Sunny
    then T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 76. Southwest wind 6 to 9 mph. Chance of precipitation is 60%.

    Low: 76 °F

    T-storms
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 92. Southwest wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%.

    High: 92 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 60%.

    Low: 76 °F

    T-storms
    Likely then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

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

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: 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

Today
Showers and thunderstorms likely, mainly after 4pm. Partly sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 76. West wind 6 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms likely, mainly after 5pm. Increasing clouds, with a high near 93. Heat index values as high as 105. Southwest wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 76. Southwest wind 6 to 9 mph. Chance of precipitation is 60%.
Tuesday
A slight chance of showers, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 92. Southwest wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 60%.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Wednesday Night
Partly cloudy, with a low around 77.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95.
Thursday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 78.
Friday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 95.
Friday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Saturday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Mayport Naval Station FL
 30.44°N 81.48°W
Last Update:
7:16 am EDT Jul 12, 2026
Forecast Valid:
8am EDT Jul 12, 2026-6pm EDT Jul 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation