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

Cold Temperatures Continue in the Southeast; Snow in the Central Appalachians and Ohio Valley; Rain and Thunderstorms in the Southeast

Cold temperatures will persist across Florida and the Southeast through Tuesday, then milder conditions are expected beginning Wednesday. A frontal system is expected to bring wintry precipitation to the Central Appalachians and portions of the Mid-Atlantic Tuesday into Wednesday, meanwhile, showers and thunderstorms are expected along the Gulf Coast and Southeast. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

24°F

-4°C

Humidity 60%
Wind Speed SW 5 mph
Barometer 30.20 in (1022.4 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 3 Feb 9:53 am EST
Extended Forecast for

Princeton Junction NJ

  • Today

    Today: Partly sunny, with a high near 33. West wind 5 to 10 mph.

    High: 33 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of snow between 3am and 4am. Mostly cloudy, with a low around 15. Calm wind. Chance of precipitation is 20%.

    Low: 15 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 32. Northwest wind around 5 mph.

    High: 32 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 9. Northwest wind around 5 mph.

    Low: 9 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 30. Northwest wind around 5 mph.

    High: 30 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 4.

    Low: 4 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow after 1pm. Partly sunny, with a high near 30. Chance of precipitation is 40%.

    High: 30 °F

    Partly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 9.

    Low: 9 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 16.

    High: 16 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 33. West wind 5 to 10 mph.
Tonight
A slight chance of snow between 3am and 4am. Mostly cloudy, with a low around 15. Calm wind. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 32. Northwest wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 9. Northwest wind around 5 mph.
Thursday
Sunny, with a high near 30. Northwest wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 4.
Friday
A chance of snow after 1pm. Partly sunny, with a high near 30. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 9.
Saturday
Sunny, with a high near 16.
Saturday Night
Mostly clear, with a low around 3.
Sunday
Mostly sunny, with a high near 17.
Sunday Night
Mostly clear, with a low around 3.
Monday
Sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton Junction NJ
 40.32°N 74.62°W (Elev. 85 ft)
Last Update:
4:13 am EST Feb 3, 2026
Forecast Valid:
10am EST Feb 3, 2026-6pm EST Feb 9, 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