A major winter storm is expected to impact the area late this weekend.

A major winter storm is expected to begin impacting the area Saturday night, continuing through early Monday afternoon. Significant snow accumulations are possible areawide. Some mixed precipitation is expected across the I-95 corridor southward into Delmarva. View this briefing for details. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

19°F

-7°C

Humidity 88%
Wind Speed NW 5 mph
Barometer 29.75 in (1007.2 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 26 Jan 4:53 am EST
Extended Forecast for

Princeton NJ

Cold Weather Advisory January 26, 07:00pm until January 28, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  • Overnight

    Overnight: A slight chance of snow.  Patchy fog.  Otherwise, cloudy, with a low around 15. Calm wind.  Chance of precipitation is 20%.

    Low: 15 °F

    Slight Chance
    Snow and
    Patchy Fog

  • Monday

    Monday: A slight chance of snow between 8am and 10am.  Patchy fog before 7am.  Otherwise, mostly cloudy, with a high near 28. Light northwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 20%.

    High: 28 °F

    Slight Chance
    Snow and
    Patchy Fog
    then Partly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 5. Wind chill values as low as -4. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 5 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 19. Wind chill values as low as -7. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 19 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 2. West wind around 5 mph.

    Low: 2 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 20.

    High: 20 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -1.

    Low: -1 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 18.

    High: 18 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around -4.

    Low: -4 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of snow. Patchy fog. Otherwise, cloudy, with a low around 15. Calm wind. Chance of precipitation is 20%.
Monday
A slight chance of snow between 8am and 10am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 28. Light northwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, then gradually becoming clear, with a low around 5. Wind chill values as low as -4. West wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 19. Wind chill values as low as -7. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 2. West wind around 5 mph.
Wednesday
Mostly sunny, with a high near 20.
Wednesday Night
Partly cloudy, with a low around -1.
Thursday
Sunny, with a high near 18.
Thursday Night
Mostly clear, with a low around -4.
Friday
Sunny, with a high near 15.
Friday Night
Mostly clear, with a low around 0.
Saturday
Sunny, with a high near 23.
Saturday Night
Mostly clear, with a low around 2.
Sunday
Sunny, with a high near 26.
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton NJ
 40.37°N 74.67°W (Elev. 256 ft)
4:20 am EST Jan 26, 2026
5am EST Jan 26, 2026-6pm EST Feb 1, 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