Snow Expected from the Ohio Valley into the Mid-Atlantic; Rain and Thunderstorms in the Southeast

A frontal system is expected to bring wintry precipitation to the Central Appalachians and portions of the Mid-Atlantic into Wednesday, meanwhile, showers and thunderstorms are expected along the Gulf Coast and Southeast. A series of Clipper systems will bring periods of snow to the Northern Plains and Great Lakes over the next several days. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

30°F

-1°C

Humidity 49%
Wind Speed N 12 mph
Barometer 30.23 in (1023.4 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 4 Feb 10:53 am EST
Extended Forecast for

Princeton Junction NJ

  • Today

    Today: Sunny, with a high near 30. North wind around 5 mph.

    High: 30 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 9. Calm wind.

    Low: 9 °F

    Decreasing
    Clouds

  • Thursday

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

    High: 30 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 8. Calm wind.

    Low: 8 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of snow after 1pm.  Partly sunny, with a high near 30. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 30 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: A chance of snow.  Mostly cloudy, with a low around 12. Chance of precipitation is 40%.

    Low: 12 °F

    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 18. Blustery.

    High: 18 °F

    Mostly Sunny
    and Blustery

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 1.

    Low: 1 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 19.

    High: 19 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 30. North wind around 5 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 9. Calm wind.
Thursday
Sunny, with a high near 30. North wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 8. Calm wind.
Friday
A slight chance of snow after 1pm. Partly sunny, with a high near 30. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 18. Blustery.
Saturday Night
Mostly clear, with a low around 1.
Sunday
Mostly sunny, with a high near 19.
Sunday Night
Partly cloudy, with a low around 3.
Monday
Mostly sunny, with a high near 26.
Monday Night
Partly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton Junction NJ
 40.3°N 74.62°W (Elev. 98 ft)
4:13 am EST Feb 4, 2026
11am EST Feb 4, 2026-6pm EST Feb 10, 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