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

53°F

12°C

Humidity 64%
Wind Speed S 7 mph
Barometer 30.17 in (1021.2 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 25 Nov 11:53 am EST
Extended Forecast for

Princeton North NJ

  • This Afternoon

    This Afternoon: Rain likely, mainly after 3pm. Cloudy, with a high near 58. Southeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Rain Likely

  • Tonight

    Tonight: Rain, mainly before midnight. Low around 49. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Showers likely. Cloudy, with a high near 65. Southwest wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 65 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Rain

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 44. West wind 10 to 15 mph.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

Detailed Forecast

This Afternoon
Rain likely, mainly after 3pm. Cloudy, with a high near 58. Southeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly before midnight. Low around 49. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers likely. Cloudy, with a high near 65. Southwest wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A slight chance of rain before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind 5 to 10 mph. Chance of precipitation is 20%.
Thanksgiving Day
Mostly sunny, with a high near 44. West wind 10 to 15 mph.
Thursday Night
Mostly clear, with a low around 29.
Friday
Mostly sunny, with a high near 43.
Friday Night
Mostly clear, with a low around 27.
Saturday
Sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
Mostly cloudy, with a high near 47.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Monday
A chance of rain. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton North NJ
 40.37°N 74.64°W (Elev. 98 ft)
Last Update:
4:09 am EST Nov 25, 2025
Forecast Valid:
12pm EST Nov 25, 2025-6pm EST Dec 1, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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