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

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

23°F

-5°C

Humidity 60%
Wind Speed Calm
Barometer 29.94 in (1013.7 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Last update 24 Feb 8:53 pm EST
Extended Forecast for

2 Miles SSE Princeton Junction NJ

  • Tonight

    Tonight: Snow likely, mainly after 4am. Increasing clouds, with a temperature rising to around 29 by 5am. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 18 °F⇑

    Partly Cloudy
    then Snow
    Likely

  • Wednesday

    Wednesday: Snow, mainly before 8am. High near 44. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Snow then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28. Southwest wind around 5 mph.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 40. West wind around 5 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 25. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Chance Snow

  • Friday

    Friday: A slight chance of rain and snow before 1pm. Partly sunny, with a high near 40. Chance of precipitation is 20%.

    High: 40 °F

    Slight Chance
    Rain/Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow likely, mainly after 4am. Increasing clouds, with a temperature rising to around 29 by 5am. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Snow, mainly before 8am. High near 44. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 28. Southwest wind around 5 mph.
Thursday
A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 40. West wind around 5 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 25. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.
Friday
A slight chance of rain and snow before 1pm. Partly sunny, with a high near 40. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly cloudy, with a high near 44.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
A chance of snow. Mostly cloudy, with a high near 31. Chance of precipitation is 40%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Princeton Junction NJ
 40.29°N 74.6°W (Elev. 98 ft)
Last Update:
4:31 pm EST Feb 24, 2026
Forecast Valid:
9pm EST Feb 24, 2026-6pm EST Mar 3, 2026
 
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