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

Hazardous Weather Conditions

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

71°F

22°C

Humidity 20%
Wind Speed N 9 mph
Barometer 30.04 in (1016.4 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 30 Apr 6:53 pm EDT
Extended Forecast for

Princeton North NJ

  • Tonight

    Tonight: Mostly clear, with a low around 45. North wind around 5 mph.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 73. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after 11pm. Mostly cloudy, with a low around 57. Southeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. South wind 5 to 15 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 62. South wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.

    High: 68 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 45. North wind around 5 mph.
Thursday
Mostly sunny, with a high near 73. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Thursday Night
A chance of showers, with thunderstorms also possible after 11pm. Mostly cloudy, with a low around 57. Southeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. South wind 5 to 15 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 62. South wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Sunday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
Monday
A chance of showers. Partly sunny, with a high near 61. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton North NJ
 40.37°N 74.64°W (Elev. 98 ft)
Last Update:
7:11 pm EDT Apr 30, 2025
Forecast Valid:
7pm EDT Apr 30, 2025-6pm EDT May 7, 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