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.

Mostly Cloudy

54°F

12°C

Humidity 31%
Wind Speed W 15 G 24 mph
Barometer 30.01 in (1015.6 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 6 Apr 3:53 pm EDT
Extended Forecast for

Princeton Junction NJ

Freeze Watch April 8, 12:00am until April 8, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Tonight

    Tonight: A slight chance of showers between 8pm and 9pm. Partly cloudy, with a low around 38. West wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 38 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 28. North wind around 5 mph.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 51. Calm wind becoming east around 5 mph in the afternoon.

    High: 51 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 30. Southeast wind around 5 mph becoming calm in the evening.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers between 8pm and 9pm. Partly cloudy, with a low around 38. West wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 52. West wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 28. North wind around 5 mph.
Wednesday
Sunny, with a high near 51. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 30. Southeast wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Partly sunny, with a high near 79.
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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:
10:06 am EDT Apr 6, 2026
Forecast Valid:
4pm EDT Apr 6, 2026-6pm EDT Apr 13, 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