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.

Fair

19°F

-7°C

Humidity 43%
Wind Speed NW 14 G 25 mph
Barometer 29.99 in (1015.1 mb)
Dewpoint 0°F (-18°C)
Visibility 9.00 mi
Wind Chill5°F (-15°C)
Last update 26 Jan 9:53 pm EST
Extended Forecast for

Trenton NJ

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

    NOW until 10:00am Wed

    Cold Weather Advisory

  • Tonight

    Low: 6 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 21. Wind chill values as low as -7. West wind 10 to 15 mph.

    High: 21 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming clear, with a low around 6. Wind chill values as low as -5. West wind around 5 mph.

    Low: 6 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 20. Wind chill values as low as -6. West wind 5 to 10 mph.

    High: 20 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 4. West wind around 5 mph.

    Low: 4 °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 -1.

    Low: -1 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 16.

    High: 16 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 6. Wind chill values as low as -4. West wind 10 to 15 mph.
Tuesday
Increasing clouds, with a high near 21. Wind chill values as low as -7. West wind 10 to 15 mph.
Tuesday Night
Mostly cloudy, then gradually becoming clear, with a low around 6. Wind chill values as low as -5. West wind around 5 mph.
Wednesday
Mostly sunny, with a high near 20. Wind chill values as low as -6. West wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 4. West wind around 5 mph.
Thursday
Sunny, with a high near 18.
Thursday Night
Mostly clear, with a low around -1.
Friday
Mostly sunny, with a high near 16.
Friday Night
Partly cloudy, with a low around 1.
Saturday
Mostly sunny, with a high near 22.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 9. Chance of precipitation is 30%.
Sunday
A chance of snow. Partly sunny, with a high near 26. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 12.
Monday
Mostly sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trenton NJ
 40.23°N 74.78°W (Elev. 33 ft)
Last Update:
4:11 pm EST Jan 26, 2026
Forecast Valid:
10pm EST Jan 26, 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