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

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

29°F

-2°C

Humidity 54%
Wind Speed W 7 mph
Barometer 29.77 in (1007.8 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 2 Jan 3:53 pm EST
Extended Forecast for

Princeton North NJ

  • This Afternoon

    This Afternoon: A slight chance of snow showers. Partly sunny, with a high near 33. West wind around 5 mph. Chance of precipitation is 20%.

    High: 33 °F

    Slight Chance
    Snow Showers

  • Tonight

    Tonight: Mostly clear, with a low around 17. West wind around 5 mph.

    Low: 17 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 32. West wind around 5 mph becoming calm in the afternoon.

    High: 32 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow, mainly after 1am. Cloudy, with a low around 23. Calm wind. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 23 °F

    Chance Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 36. Light west wind becoming northwest 5 to 10 mph in the morning.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 43.

    High: 43 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A slight chance of snow showers. Partly sunny, with a high near 33. West wind around 5 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 17. West wind around 5 mph.
Saturday
Partly sunny, with a high near 32. West wind around 5 mph becoming calm in the afternoon.
Saturday Night
A chance of snow, mainly after 1am. Cloudy, with a low around 23. Calm wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
Mostly sunny, with a high near 36. Light west wind becoming northwest 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 17.
Monday
Mostly cloudy, with a high near 31.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
Mostly cloudy, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 49.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Friday
A chance of rain. Mostly cloudy, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton North NJ
 40.37°N 74.64°W (Elev. 98 ft)
Last Update:
4:12 pm EST Jan 2, 2026
Forecast Valid:
4pm EST Jan 2, 2026-6pm EST Jan 9, 2026
 
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