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.

Mostly Cloudy

17°C

63°F

Humidity 63%
Wind Speed NW 15 km/h
Barometer 1006.1 mb (29.73 in)
Dewpoint 10°C (50°F)
Visibility 16 km
Last update 19 May 12:53 am EDT
Extended Forecast for

Princeton North NJ

  • Overnight

    Overnight: Partly cloudy, with a low around 13. Northwest wind around 15 km/h.

    Low: 13 °C

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 22. Northwest wind 15 to 25 km/h.

    High: 22 °C

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 8. Northwest wind 10 to 20 km/h.

    Low: 8 °C

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 22. Northwest wind 10 to 15 km/h.

    High: 22 °C

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 11. North wind 5 to 10 km/h becoming east after midnight. Chance of precipitation is 40%. New precipitation amounts of less than 1 mm possible.

    Low: 11 °C

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers, mainly after 8am. High near 14. Chance of precipitation is 90%. New precipitation amounts between 7.5 mm and 1 cm possible.

    High: 14 °C

    Showers

  • Wednesday Night

    Wednesday Night: Showers. Low around 9. Chance of precipitation is 90%.

    Low: 9 °C

    Showers

  • Thursday

    Thursday: Showers. High near 14. Chance of precipitation is 80%.

    High: 14 °C

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 8. Chance of precipitation is 60%.

    Low: 8 °C

    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 13. Northwest wind around 15 km/h.
Monday
Sunny, with a high near 22. Northwest wind 15 to 25 km/h.
Monday Night
Clear, with a low around 8. Northwest wind 10 to 20 km/h.
Tuesday
Sunny, with a high near 22. Northwest wind 10 to 15 km/h.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 11. North wind 5 to 10 km/h becoming east after midnight. Chance of precipitation is 40%. New precipitation amounts of less than 1 mm possible.
Wednesday
Showers, mainly after 8am. High near 14. Chance of precipitation is 90%. New precipitation amounts between 7.5 mm and 1 cm possible.
Wednesday Night
Showers. Low around 9. Chance of precipitation is 90%.
Thursday
Showers. High near 14. Chance of precipitation is 80%.
Thursday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 8. Chance of precipitation is 60%.
Friday
A chance of showers. Mostly cloudy, with a high near 17. Chance of precipitation is 50%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 8. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 20.
Saturday Night
Partly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton North NJ
 40.37°N 74.64°W (Elev. 98 m)
Last Update:
9:13 pm EDT May 18, 2025
Forecast Valid:
1am EDT May 19, 2025-6pm EDT May 25, 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