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.

Partly Cloudy

19°F

-7°C

Humidity 37%
Wind Speed W 13 G 22 mph
Barometer 30.04 in (1016.8 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 27 Jan 12:53 pm EST
Extended Forecast for

Monmouth Junction NJ

Cold Weather Advisory January 27, 01:20pm until January 28, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 27, 01:20pm until January 28, 10:00am

    NOW until 10:00am Wed

    Cold Weather Advisory

  • This Afternoon

    High: 20 °F

    Chance
    Flurries

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 1. Wind chill values as low as -8. West wind around 5 mph.

    Low: 1 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Increasing clouds, with a high near 21. Wind chill values as low as -9. West wind around 5 mph.

    High: 21 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 3. Wind chill values as low as -7. West wind around 5 mph.

    Low: 3 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 20. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 20 °F

    Mostly Sunny

  • Thursday Night

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

    Low: -1 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 18.

    High: 18 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -2.

    Low: -2 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A chance of flurries. Mostly cloudy, with a high near 20. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 1. Wind chill values as low as -8. West wind around 5 mph.
Wednesday
Increasing clouds, with a high near 21. Wind chill values as low as -9. West wind around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 3. Wind chill values as low as -7. West wind around 5 mph.
Thursday
Mostly sunny, with a high near 20. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around -1.
Friday
Mostly sunny, with a high near 18.
Friday Night
Partly cloudy, with a low around -2.
Saturday
Partly sunny, with a high near 21.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 8. Chance of precipitation is 40%.
Sunday
A chance of snow. Cloudy, with a high near 26. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 14.
Monday
Mostly sunny, with a high near 30.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monmouth Junction NJ
 40.38°N 74.55°W (Elev. 98 ft)
Last Update:
12:34 pm EST Jan 27, 2026
Forecast Valid:
1pm EST Jan 27, 2026-6pm EST Feb 2, 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