Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

22°F

-6°C

Humidity 68%
Wind Speed SW 6 mph
Barometer 29.82 in (1009.6 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 2 Jan 8:53 am EST
Extended Forecast for

Trenton NJ

  • Today

    Today: Partly sunny, with a high near 34. West wind 5 to 10 mph.

    High: 34 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 18. West wind around 5 mph.

    Low: 18 °F

    Partly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 33. Calm wind becoming west around 5 mph.

    High: 33 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A slight chance of snow.  Cloudy, with a low around 23. Calm wind.  Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 36. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 44.

    High: 44 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 34. West wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 18. West wind around 5 mph.
Saturday
Increasing clouds, with a high near 33. Calm wind becoming west around 5 mph.
Saturday Night
A slight chance of snow. Cloudy, with a low around 23. Calm wind. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 36. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Mostly cloudy, with a high near 34.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Mostly cloudy, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Partly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Trenton NJ
 40.23°N 74.78°W (Elev. 33 ft)
4:11 am EST Jan 2, 2026
9am EST Jan 2, 2026-6pm EST Jan 8, 2026
 
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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