A coastal storm is expected to impact portions of the area Saturday night through Sunday.

A coastal storm is expected to impact the area Saturday night through Sunday. Impacts are expected to be confined mainly near the coasts of New Jersey and Delaware, where the highest light snowfall accumulations will occur. Minor coastal flooding and strong winds are also forecast along the Atlantic coast. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

22°F

-6°C

Humidity 44%
Wind Speed N 6 mph
Barometer 30.08 in (1018.3 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 31 Jan 3:53 pm EST
Extended Forecast for

Princeton Junction NJ

Cold Weather Advisory January 31, 04:36pm until February 1, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 31, 04:36pm until February 1, 10:00am

    NOW until 10:00am Sun

    Cold Weather Advisory

  • Tonight

    Low: 8 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 24. Wind chill values as low as -6. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 24 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 10. Wind chill values as low as zero. Northwest wind 5 to 10 mph.

    Low: 10 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 31. Wind chill values as low as -1. Northwest wind 5 to 10 mph.

    High: 31 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 7. West wind around 5 mph becoming calm  in the evening.

    Low: 7 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 8. Wind chill values as low as -6. Light northeast wind becoming north 5 to 10 mph in the evening. Winds could gust as high as 25 mph.
Sunday
Mostly cloudy, with a high near 24. Wind chill values as low as -6. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 10. Wind chill values as low as zero. Northwest wind 5 to 10 mph.
Monday
Sunny, with a high near 31. Wind chill values as low as -1. Northwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 7. West wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
Partly sunny, with a high near 30.
Wednesday Night
Partly cloudy, with a low around 8.
Thursday
Mostly sunny, with a high near 28.
Thursday Night
Partly cloudy, with a low around 6.
Friday
A chance of snow. Mostly cloudy, with a high near 30. Chance of precipitation is 30%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 21.
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton Junction NJ
 40.3°N 74.62°W (Elev. 98 ft)
4:12 pm EST Jan 31, 2026
4pm EST Jan 31, 2026-6pm EST Feb 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