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

39°F

4°C

Humidity 93%
Wind Speed NW 7 mph
Barometer 29.64 in (1003.3 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 2 Dec 5:53 pm EST
Extended Forecast for

Princeton North NJ

  • Tonight

    Tonight: A slight chance of rain between 7pm and 8pm. Cloudy during the early evening, then gradual clearing, with a low around 26. Northwest wind around 10 mph. Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 41. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 26. Calm wind becoming southwest around 5 mph after midnight.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 40. West wind 5 to 15 mph.

    High: 40 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 15. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 15 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of snow after 1pm. Partly sunny, with a high near 33. Chance of precipitation is 20%.

    High: 33 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.

    Low: 23 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of rain between 7pm and 8pm. Cloudy during the early evening, then gradual clearing, with a low around 26. Northwest wind around 10 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 41. Northwest wind around 5 mph becoming calm in the afternoon.
Wednesday Night
Mostly clear, with a low around 26. Calm wind becoming southwest around 5 mph after midnight.
Thursday
Partly sunny, with a high near 40. West wind 5 to 15 mph.
Thursday Night
Mostly clear, with a low around 15. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Friday
A slight chance of snow after 1pm. Partly sunny, with a high near 33. Chance of precipitation is 20%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 39.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
Partly sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 34.
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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:
4:10 pm EST Dec 2, 2025
Forecast Valid:
6pm EST Dec 2, 2025-6pm EST Dec 9, 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