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

Arctic Cold Air Outbreak this Weekend - Subfreezing Temperatures and Dangerous Wind Chills

An outbreak of Arctic air will arrive across southeast GA, northeast and north central FL on Saturday. Record cold temperatures, gale conditions on the coastal waters, and life-threatening wind chill values are expected Saturday night and Sunday morning. Take proper precautions to protect yourself, your pets, and vulnerable people from this dangerously cold weather. Read More >

Hazardous Weather Conditions

Current conditions at

Northeast Florida Regional Airport (KSGJ)

Lat: 29.96°NLon: 81.34°WElev: 3ft.

Fair

42°F

6°C

Humidity 55%
Wind Speed W 6 mph
Barometer 30.26 in (1024.5 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 28 Jan 9:56 pm EST
Extended Forecast for

St. Augustine Airport FL

Frost Advisory January 29, 02:00am until January 29, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 2am. Otherwise, clear, with a low around 34. Northwest wind 6 to 8 mph, with gusts as high as 15 mph.

    Low: 34 °F

    Clear then
    Areas Frost

  • Thursday

    Thursday: Areas of frost before 9am. Otherwise, sunny, with a high near 57. Wind chill values as low as 27 early. Northeast wind around 9 mph.

    High: 57 °F

    Areas Frost
    then Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 43. Light northeast wind.

    Low: 43 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 66. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 46. Calm wind becoming northwest 5 to 7 mph after midnight.

    Low: 46 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 55. Windy.

    High: 55 °F

    Partly Sunny
    and Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 22. Very windy.

    Low: 22 °F

    Mostly Clear
    and Very
    Windy

  • Sunday

    Sunday: Sunny, with a high near 44. Windy.

    High: 44 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of frost after 2am. Otherwise, clear, with a low around 34. Northwest wind 6 to 8 mph, with gusts as high as 15 mph.
Thursday
Areas of frost before 9am. Otherwise, sunny, with a high near 57. Wind chill values as low as 27 early. Northeast wind around 9 mph.
Thursday Night
Mostly cloudy, with a low around 43. Light northeast wind.
Friday
Mostly sunny, with a high near 66. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 46. Calm wind becoming northwest 5 to 7 mph after midnight.
Saturday
Partly sunny, with a high near 55. Windy.
Saturday Night
Mostly clear, with a low around 22. Very windy.
Sunday
Sunny, with a high near 44. Windy.
Sunday Night
Mostly clear, with a low around 26.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Sunny, with a high near 57.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
St. Augustine Airport FL
 29.95°N 81.35°W
Last Update:
6:12 pm EST Jan 28, 2026
Forecast Valid:
10pm EST Jan 28, 2026-6pm EST Feb 4, 2026
 
Forecast Discussion
 
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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