National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

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

Lat: 30.4°NLon: 81.42°WElev: 13ft.

Fair

57°F

14°C

Humidity 53%
Wind Speed S 16 mph
Barometer 30.19 in (1022.1 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 17 Jan 8:52 am EST
Extended Forecast for

3 Miles S Fernandina Beach FL

Freeze Watch January 19, 12:00am until January 19, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Today

    Today: Partly sunny, with a high near 68. South wind around 7 mph.

    High: 68 °F

    Partly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 42. Light and variable wind becoming northwest 5 to 7 mph after midnight.

    Low: 42 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, mainly before 1pm. Temperature falling to around 41 by 5pm. Northwest wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 48 °F⇓

    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 34. Northwest wind 6 to 8 mph.

    Low: 34 °F

    Frost

  • M.L.King Day

    M.L.King Day: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 52. Northwest wind around 7 mph.

    High: 52 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear
    then Patchy
    Frost

  • Tuesday

    Tuesday: Patchy frost before 8am. Otherwise, mostly sunny, with a high near 52.

    High: 52 °F

    Patchy Frost
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 68. South wind around 7 mph.
Tonight
A 30 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 42. Light and variable wind becoming northwest 5 to 7 mph after midnight.
Sunday
Showers, mainly before 1pm. Temperature falling to around 41 by 5pm. Northwest wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 34. Northwest wind 6 to 8 mph.
M.L.King Day
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 52. Northwest wind around 7 mph.
Monday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 38.
Tuesday
Patchy frost before 8am. Otherwise, mostly sunny, with a high near 52.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 63.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 53.
Friday
A 20 percent chance of showers and thunderstorms. 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:
5:32 am EST Jan 17, 2026
Forecast Valid:
9am EST Jan 17, 2026-6pm EST Jan 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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