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

Briefing for Wintry Precipitation and Extreme Cold Impacts from January 18 to 22

Widespread wintry precipitation on Sunday; and dangerously cold conditions expected for much of next week. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Light Snow Fog/Mist

24°F

-4°C

Humidity 81%
Wind Speed NW 14 G 26 mph
Barometer 29.76 in (1007.3 mb)
Dewpoint 19°F (-7°C)
Visibility 9.00 mi
Wind Chill12°F (-11°C)
Last update 19 Jan 9:53 pm EST
Extended Forecast for

Princeton NJ

Cold Weather Advisory January 20, 06:00pm until January 21, 06:00am
Winter Storm Warning January 19, 10:51pm until January 20, 01:00am
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning
  •  
    Winter Storm Warning January 19, 10:51pm until January 20, 01:00am

    NOW until 1:00am Mon

    Winter Storm Warning

  • Tonight

    Low: 14 °F

    Chance Snow
    then Partly
    Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 23. West wind 10 to 15 mph.

    High: 23 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 6. Wind chill values as low as -5. West wind 5 to 10 mph.

    Low: 6 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 18. Wind chill values as low as -6. West wind 5 to 10 mph.

    High: 18 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A slight chance of snow before 1am. Mostly cloudy, with a low around 5. Northwest wind around 5 mph. Chance of precipitation is 20%.

    Low: 5 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: Sunny, with a high near 18.

    High: 18 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 3.

    Low: 3 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 25.

    High: 25 °F

    Partly Sunny

Detailed Forecast

Tonight
A chance of snow, mainly before 11pm. Cloudy early, then gradual clearing, with a low around 14. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of 1 to 3 inches possible.
M.L.King Day
Mostly sunny, with a high near 23. West wind 10 to 15 mph.
Monday Night
Mostly clear, with a low around 6. Wind chill values as low as -5. West wind 5 to 10 mph.
Tuesday
Increasing clouds, with a high near 18. Wind chill values as low as -6. West wind 5 to 10 mph.
Tuesday Night
A slight chance of snow before 1am. Mostly cloudy, with a low around 5. Northwest wind around 5 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 18.
Wednesday Night
Mostly cloudy, with a low around 3.
Thursday
Partly sunny, with a high near 25.
Thursday Night
Mostly cloudy, with a low around 10.
Friday
Mostly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 15.
Saturday
Sunny, with a high near 33.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
Mostly cloudy, with a high near 38.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Princeton NJ
 40.37°N 74.67°W (Elev. 256 ft)
Last Update:
10:11 pm EST Jan 19, 2025
Forecast Valid:
10pm EST Jan 19, 2025-6pm EST Jan 26, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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