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.

Partly Cloudy

33°F

1°C

Humidity 75%
Wind Speed W 6 mph
Barometer 30.04 in (1016.7 mb)
Dewpoint 26°F (-3°C)
Visibility 7.00 mi
Wind Chill27°F (-3°C)
Last update 7 Dec 11:53 pm EST
Extended Forecast for

Princeton North NJ

  • Overnight

    Overnight: Mostly clear, with a low around 23. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 23 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 31. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 31 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. Calm wind.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 36. Calm wind becoming south around 5 mph in the afternoon.

    High: 36 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A slight chance of snow after 1am. Mostly cloudy, with a low around 28. Southwest wind around 5 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 47. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.

    Low: 26 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly clear, with a low around 23. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Increasing clouds, with a high near 31. North wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 13. Calm wind.
Tuesday
Increasing clouds, with a high near 36. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A slight chance of snow after 1am. Mostly cloudy, with a low around 28. Southwest wind around 5 mph. Chance of precipitation is 20%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 47. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 43.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Friday
A chance of snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 20. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 33.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 32.
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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:
6:09 pm EST Dec 7, 2025
Forecast Valid:
12am EST Dec 8, 2025-6pm EST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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