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

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

44°F

7°C

Humidity 73%
Wind Speed W 3 mph
Barometer 29.85 in (1010.2 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 25 Mar 4:53 am EDT
Extended Forecast for

Princeton North NJ

  • Today

    Today: Sunny, with a high near 59. West wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 34. West wind around 5 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53. Light northwest wind becoming west 5 to 10 mph in the morning.

    High: 53 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 31. Northwest wind 5 to 10 mph.

    Low: 31 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 52. West wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 52 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 8am. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.

    High: 59 °F

    Chance
    Showers then
    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 59. West wind 5 to 15 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 34. West wind around 5 mph.
Wednesday
Mostly sunny, with a high near 53. Light northwest wind becoming west 5 to 10 mph in the morning.
Wednesday Night
Mostly clear, with a low around 31. Northwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 52. West wind 5 to 10 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 59.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.
Saturday
A chance of showers before 8am. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
Saturday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 41. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly cloudy, with a high near 62. Chance of precipitation is 30%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Monday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton North NJ
 40.37°N 74.64°W (Elev. 98 ft)
Last Update:
4:11 am EDT Mar 25, 2025
Forecast Valid:
5am EDT Mar 25, 2025-6pm EDT Mar 31, 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