Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

-2°C

28°F

Humidity 69%
Wind Speed N 9 km/h
Barometer 1017.6 mb (30.06 in)
Dewpoint -7°C (19°F)
Visibility 16 km
Wind Chill-6°C (21°F)
Last update 5 Dec 6:53 pm EST
Extended Forecast for

2 Miles S Princeton Junction NJ

  • Tonight

    Tonight: A chance of snow before 11pm, then a chance of snow and freezing rain between 11pm and 1am, then a chance of snow after 1am.  Cloudy, with a low around -3. Calm wind.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: -3 °C

    Chance Wintry
    Mix

  • Saturday

    Saturday: Mostly cloudy, with a high near 6. Calm wind becoming southwest 5 to 10 km/h in the afternoon.

    High: 6 °C

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -4. Calm wind.

    Low: -4 °C

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 6. Calm wind.

    High: 6 °C

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -5. Calm wind becoming northwest 5 to 10 km/h after midnight.

    Low: -5 °C

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 1.

    High: 1 °C

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around -9.

    Low: -9 °C

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 2.

    High: 2 °C

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around -3.

    Low: -3 °C

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of snow before 11pm, then a chance of snow and freezing rain between 11pm and 1am, then a chance of snow after 1am. Cloudy, with a low around -3. Calm wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
Mostly cloudy, with a high near 6. Calm wind becoming southwest 5 to 10 km/h in the afternoon.
Saturday Night
Partly cloudy, with a low around -4. Calm wind.
Sunday
Mostly cloudy, with a high near 6. Calm wind.
Sunday Night
Mostly cloudy, with a low around -5. Calm wind becoming northwest 5 to 10 km/h after midnight.
Monday
Mostly sunny, with a high near 1.
Monday Night
Partly cloudy, with a low around -9.
Tuesday
Mostly sunny, with a high near 2.
Tuesday Night
Mostly cloudy, with a low around -3.
Wednesday
A chance of rain after 1pm. Mostly cloudy, with a high near 8. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 1. Chance of precipitation is 50%.
Thursday
A chance of rain. Partly sunny, with a high near 6. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around -3.
Friday
Partly sunny, with a high near 4.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Princeton Junction NJ
 40.3°N 74.62°W (Elev. 98 m)
4:10 pm EST Dec 5, 2025
7pm EST Dec 5, 2025-6pm EST Dec 12, 2025
 
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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