Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

60°F

16°C

Humidity 41%
Wind Speed W 8 mph
Barometer 29.88 in (1011.4 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 1 May 1:53 pm EDT
Extended Forecast for

Princeton North NJ

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 65. Southwest wind around 10 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers, mainly after midnight.  Increasing clouds, with a low around 46. Southwest wind 5 to 10 mph.  Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 61. North wind 5 to 10 mph.

    High: 61 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Cloudy, then gradually becoming partly cloudy, with a low around 40. Northeast wind 5 to 10 mph becoming northwest after midnight.

    Low: 40 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 60. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 65. Southwest wind around 10 mph.
Tonight
A chance of showers, mainly after midnight. Increasing clouds, with a low around 46. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy, with a high near 61. North wind 5 to 10 mph.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 40. Northeast wind 5 to 10 mph becoming northwest after midnight.
Sunday
Mostly sunny, with a high near 60. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Wednesday
Showers likely. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Thursday
A chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton North NJ
 40.37°N 74.67°W (Elev. 256 ft)
1:43 pm EDT May 1, 2026
2pm EDT May 1, 2026-6pm EDT May 7, 2026
 
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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