Current conditions at

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

Lat: 30.4°NLon: 81.42°WElev: 13ft.

Fair

84°F

29°C

Humidity 70%
Wind Speed W 6 mph
Barometer 30.07 in (1018.0 mb)
Dewpoint 73°F (23°C)
Visibility NA
Heat Index90°F (32°C)
Last update 9 Jul 1:52 am EDT
Extended Forecast for

Neptune Beach FL

Heat Advisory July 9, 11:00am until July 9, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Mostly clear, with a low around 80. Southwest wind around 9 mph.

    Low: 80 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 92. Heat index values as high as 105. West wind 7 to 10 mph becoming south in the afternoon.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 81. Breezy, with a southwest wind 8 to 17 mph, with gusts as high as 21 mph.

    Low: 81 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms between 3pm and 5pm.  Sunny, with a high near 90. Heat index values as high as 103. West wind 5 to 14 mph becoming southeast in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 20%.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Mostly clear, with a low around 81. Windy, with a south wind 11 to 20 mph, with gusts as high as 23 mph.

    Low: 81 °F

    Slight Chance
    T-storms and
    Windy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 89.

    High: 89 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely after 2pm.  Partly sunny, with a high near 88. Chance of precipitation is 60%.

    High: 88 °F

    Mostly Sunny
    then T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 78. Chance of precipitation is 60%.

    Low: 78 °F

    T-storms
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 80. Southwest wind around 9 mph.
Thursday
Sunny, with a high near 92. Heat index values as high as 105. West wind 7 to 10 mph becoming south in the afternoon.
Thursday Night
Partly cloudy, with a low around 81. Breezy, with a southwest wind 8 to 17 mph, with gusts as high as 21 mph.
Friday
A slight chance of showers and thunderstorms between 3pm and 5pm. Sunny, with a high near 90. Heat index values as high as 103. West wind 5 to 14 mph becoming southeast in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Friday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 81. Windy, with a south wind 11 to 20 mph, with gusts as high as 23 mph.
Saturday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89.
Saturday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 79.
Sunday
Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 78. Chance of precipitation is 60%.
Monday
A slight chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 85. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm. Low around 77. Chance of precipitation is 80%.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 78. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Neptune Beach FL
 30.32°N 81.38°W
2:21 am EDT Jul 9, 2026
2am EDT Jul 9, 2026-6pm EDT Jul 15, 2026
 
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