National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

46°F

8°C

Humidity 40%
Wind Speed W 8 G 21 mph
Barometer 30.15 in (1020.6 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 18 Nov 11:53 am EST
Extended Forecast for

Trenton NJ

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 48. West wind 5 to 10 mph.

    High: 48 °F

    Mostly Cloudy

  • Tonight

    Tonight: Rain, mainly after 11pm. Low around 37. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Chance Rain
    then Rain

  • Wednesday

    Wednesday: A chance of rain, mainly before 7am. Mostly cloudy, with a high near 50. Calm wind becoming north around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Chance Rain
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 50. Calm wind.

    High: 50 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain. Cloudy, with a low around 42. Chance of precipitation is 30%.

    Low: 42 °F

    Chance Rain

  • Friday

    Friday: A chance of rain before 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 30%.

    High: 58 °F

    Chance Rain

  • Friday Night

    Friday Night: A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 50%.

    Low: 41 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain before 1pm. Partly sunny, with a high near 52. Chance of precipitation is 30%.

    High: 52 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 48. West wind 5 to 10 mph.
Tonight
Rain, mainly after 11pm. Low around 37. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of rain, mainly before 7am. Mostly cloudy, with a high near 50. Calm wind becoming north around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 34. Calm wind.
Thursday
Mostly cloudy, with a high near 50. Calm wind.
Thursday Night
A chance of rain. Cloudy, with a low around 42. Chance of precipitation is 30%.
Friday
A chance of rain before 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 30%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 50%.
Saturday
A chance of rain before 1pm. Partly sunny, with a high near 52. Chance of precipitation is 30%.
Saturday Night
A chance of rain before 1am. Partly cloudy, with a low around 32. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trenton NJ
 40.22°N 74.75°W (Elev. 23 ft)
Last Update:
6:12 am EST Nov 18, 2025
Forecast Valid:
12pm EST Nov 18, 2025-6pm EST Nov 24, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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