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

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Mostly Cloudy

20°F

-7°C

Humidity 89%
Wind Speed Calm
Barometer 30.22 in (1023.1 mb)
Dewpoint 17°F (-8°C)
Visibility NA
Last update 28 Dec 3:53 am EST
Extended Forecast for

3 Miles ENE Trenton NJ

  • Today

    Today: A slight chance of rain after 3pm. Increasing clouds, with a high near 38. Calm wind. Chance of precipitation is 20%.

    High: 38 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: Rain likely, mainly between 7pm and 1am. Cloudy, with a temperature rising to around 42 by 5am. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F⇑

    Rain Likely

  • Monday

    Monday: Rain, mainly before 1pm. High near 56. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. West wind around 15 mph, with gusts as high as 30 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 34. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 34 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.

    High: 36 °F

    Chance Snow

Detailed Forecast

Today
A slight chance of rain after 3pm. Increasing clouds, with a high near 38. Calm wind. Chance of precipitation is 20%.
Tonight
Rain likely, mainly between 7pm and 1am. Cloudy, with a temperature rising to around 42 by 5am. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain, mainly before 1pm. High near 56. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Partly cloudy, with a low around 25. West wind around 15 mph, with gusts as high as 30 mph.
Tuesday
Partly sunny, with a high near 34. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 25.
New Year's Day
A chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Trenton NJ
 40.24°N 74.72°W (Elev. 46 ft)
Last Update:
4:11 pm EST Dec 27, 2025
Forecast Valid:
4am EST Dec 28, 2025-6pm EST Jan 3, 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