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

41°F

5°C

Humidity 38%
Wind Speed NW 5 mph
Barometer 30.25 in (1024.1 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 16 Jan 9:52 am EST
Extended Forecast for

3 Miles S Fernandina Beach FL

  • Today

    Today: Sunny, with a high near 52. Light and variable wind.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 39. South wind 3 to 6 mph.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 67. South wind around 7 mph.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 43. Light and variable wind becoming northwest 5 to 7 mph after midnight.

    Low: 43 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 52. North wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

    High: 52 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32.

    Low: 32 °F

    Frost

  • M.L.King Day

    M.L.King Day: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 55.

    High: 55 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Tuesday

    Tuesday: Patchy frost before 8am. Otherwise, mostly sunny, with a high near 53.

    High: 53 °F

    Patchy Frost
    then Mostly
    Sunny

Detailed Forecast

Today
Sunny, with a high near 52. Light and variable wind.
Tonight
Mostly clear, with a low around 39. South wind 3 to 6 mph.
Saturday
Partly sunny, with a high near 67. South wind around 7 mph.
Saturday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 43. Light and variable wind becoming northwest 5 to 7 mph after midnight.
Sunday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 52. North wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Sunday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32.
M.L.King Day
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 55.
Monday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 36.
Tuesday
Patchy frost before 8am. Otherwise, mostly sunny, with a high near 53.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Mostly cloudy, with a low around 48.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Fernandina Beach FL
 30.6°N 81.46°W
Last Update:
3:36 am EST Jan 16, 2026
Forecast Valid:
10am EST Jan 16, 2026-6pm EST Jan 22, 2026
 
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Additional Resources

Radar & Satellite Image

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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