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

Wintry precipitation expected Friday afternoon into Saturday morning

A storm system will bring accumulating snow, sleet, and freezing rain that can lead to holiday travel disruptions. View this briefing for details. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

48°F

9°C

Humidity 41%
Wind Speed W 12 mph
Barometer 29.83 in (1009.6 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 25 Dec 1:53 pm EST
Extended Forecast for

Princeton NJSimilar City Names

Winter Weather Advisory December 26, 03:00pm until December 27, 10:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Christmas Day

    Christmas Day: Mostly sunny, with a high near 46. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 46 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 19. North wind around 10 mph.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: Snow likely after 1pm. Increasing clouds, with a high near 30. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 30 °F

    Partly Sunny
    then Snow
    Likely

  • Friday Night

    Friday Night: Snow before 10pm, then snow, possibly mixed with sleet between 10pm and 4am, then snow after 4am. The snow could be heavy at times. Low around 26. East wind around 5 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 3 to 5 inches possible.

    Low: 26 °F

    Snow/Sleet

  • Saturday

    Saturday: A chance of snow. Cloudy, with a high near 34. Northeast wind 5 to 10 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain after 1pm. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.

    High: 37 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 31. Chance of precipitation is 80%.

    Low: 31 °F

    Rain

  • Monday

    Monday: Rain, mainly before 1pm. High near 50. Chance of precipitation is 80%.

    High: 50 °F

    Rain

Detailed Forecast

Christmas Day
Mostly sunny, with a high near 46. Northwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 19. North wind around 10 mph.
Friday
Snow likely after 1pm. Increasing clouds, with a high near 30. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday Night
Snow before 10pm, then snow, possibly mixed with sleet between 10pm and 4am, then snow after 4am. The snow could be heavy at times. Low around 26. East wind around 5 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 3 to 5 inches possible.
Saturday
A chance of snow. Cloudy, with a high near 34. Northeast wind 5 to 10 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
A chance of rain after 1pm. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
Sunday Night
Rain. Low around 31. Chance of precipitation is 80%.
Monday
Rain, mainly before 1pm. High near 50. Chance of precipitation is 80%.
Monday Night
Partly cloudy, with a low around 22.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton NJSimilar City Names
 40.35°N 74.67°W (Elev. 190 ft)
Last Update:
4:11 am EST Dec 25, 2025
Forecast Valid:
2pm EST Dec 25, 2025-6pm EST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation