Extreme Heat Risk this Week

Extreme heat and little overnight relief will lead to an extreme risk for heat-related impacts through the rest of the week. Extreme Heat Warning in effect on Tuesday. Read More >

Current conditions at

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

Lat: 30.4°NLon: 81.42°WElev: 13ft.

Mostly Cloudy

80°F

27°C

Humidity 71%
Wind Speed W 6 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 20 Aug 7:52 pm EDT
Extended Forecast for

2 Miles NNW Mayport Naval Station FL

Heat Advisory August 21, 11:00am until August 21, 07:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Partly cloudy, with a low around 78. Southwest wind 7 to 11 mph.

    Low: 78 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm.  Mostly sunny, with a high near 90. Heat index values as high as 105. Southwest wind 6 to 11 mph, with gusts as high as 15 mph.

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms between 7pm and 11pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 77. South wind 8 to 13 mph.  Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Showers and thunderstorms likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Sunny, then becoming mostly cloudy during the afternoon, with a high near 88. Heat index values as high as 100. Southwest wind 8 to 10 mph.  Chance of precipitation is 60%.

    High: 88 °F

    Mostly Sunny
    then T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am.  Mostly cloudy, with a low around 77. Southwest wind around 9 mph.  Chance of precipitation is 60%.

    Low: 77 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 77.

    Low: 77 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny, with a high near 89.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 77.

    Low: 77 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 78. Southwest wind 7 to 11 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny, with a high near 90. Heat index values as high as 105. Southwest wind 6 to 11 mph, with gusts as high as 15 mph.
Friday Night
A slight chance of showers and thunderstorms between 7pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 77. South wind 8 to 13 mph. Chance of precipitation is 20%.
Saturday
Showers and thunderstorms likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 88. Heat index values as high as 100. Southwest wind 8 to 10 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 77. Southwest wind around 9 mph. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.
Sunday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89.
Monday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Mayport Naval Station FL
 30.44°N 81.42°W
7:12 pm EDT Aug 20, 2026
8pm EDT Aug 20, 2026-6pm EDT Aug 27, 2026
 
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Additional Resources

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