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Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

52°F

11°C

Humidity 28%
Wind Speed W 16 G 32 mph
Barometer 30.21 in (1022.4 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 7 Apr 1:53 pm EDT
Extended Forecast for

Princeton Junction NJ

Freeze Watch April 8, 08:00pm until April 9, 09:00am
Freeze Warning April 8, 12:00am until April 8, 09:00am
Click here for hazard details and duration
Freeze Watch
Freeze Warning

  • This Afternoon

    This Afternoon: Sunny, with a high near 53. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph.

    High: 53 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Clear, with a low around 27. North wind 5 to 15 mph.

    Low: 27 °F

    Clear

  • Wednesday

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

    High: 51 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost after 1am. Otherwise, mostly clear, with a low around 28. Southeast wind around 5 mph becoming calm in the evening.

    Low: 28 °F

    Clear then
    Areas Frost

  • Thursday

    Thursday: Areas of frost before 9am. Otherwise, mostly sunny, with a high near 59. Calm wind becoming south around 5 mph in the afternoon.

    High: 59 °F

    Areas Frost
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Friday Night

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

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 53. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph.
Tonight
Clear, with a low around 27. North wind 5 to 15 mph.
Wednesday
Sunny, with a high near 51. Northeast wind around 5 mph becoming east in the afternoon.
Wednesday Night
Areas of frost after 1am. Otherwise, mostly clear, with a low around 28. Southeast wind around 5 mph becoming calm in the evening.
Thursday
Areas of frost before 9am. Otherwise, mostly sunny, with a high near 59. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 35.
Friday
Sunny, with a high near 71.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Clear, with a low around 40.
Sunday
Sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 48.
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:
2:36 pm EDT Apr 7, 2026
Forecast Valid:
2pm EDT Apr 7, 2026-6pm EDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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