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

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

29°F

-2°C

Humidity 41%
Wind Speed W 20 G 35 mph
Barometer 29.77 in (1007.8 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 30 Dec 9:53 am EST
Extended Forecast for

Princeton NJ

Wind Advisory December 30, 10:01am until December 30, 01:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 30, 10:01am until December 30, 01:00pm

    NOW until 1:00pm Tue

    Wind Advisory

  • Today

    High: 31 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: A slight chance of snow showers after 4am. Increasing clouds, with a low around 22. West wind 10 to 15 mph. Chance of precipitation is 20%.

    Low: 22 °F

    Partly Cloudy
    then Slight
    Chance Snow
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 21. Southwest wind around 5 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Chance Snow
    Showers

  • New Year's Day

    New Year's Day: A slight chance of snow showers before 1pm. Mostly sunny, with a high near 30. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 30 °F

    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 31. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph.
Tonight
A slight chance of snow showers after 4am. Increasing clouds, with a low around 22. West wind 10 to 15 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 32. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 21. Southwest wind around 5 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
New Year's Day
A slight chance of snow showers before 1pm. Mostly sunny, with a high near 30. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 15.
Friday
Partly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 17.
Sunday
Sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 22.
Monday
A chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton NJ
 40.37°N 74.67°W (Elev. 256 ft)
Last Update:
4:10 am EST Dec 30, 2025
Forecast Valid:
10am EST Dec 30, 2025-6pm EST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation