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.

Fair

28°F

-2°C

Humidity 78%
Wind Speed Calm
Barometer 29.97 in (1014.4 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 6 Jan 2:53 am EST
Extended Forecast for

Lambertville NJ

  • Overnight

    Overnight: Cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Cloudy

  • Tuesday

    Tuesday: A slight chance of light rain after 4pm. Cloudy, with a high near 43. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 43 °F

    Cloudy then
    Slight Chance
    Light Rain

  • Tuesday Night

    Tuesday Night: A chance of light rain, mainly before 4am. Widespread fog, mainly between 8pm and 3am. Otherwise, cloudy, with a low around 34. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Chance Light
    Rain and Fog

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. West wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely. Cloudy, with a high near 57. Chance of precipitation is 60%.

    High: 57 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely. Cloudy, with a low around 46. Chance of precipitation is 70%.

    Low: 46 °F

    Showers
    Likely

Detailed Forecast

Overnight
Cloudy, with a low around 26. Calm wind.
Tuesday
A slight chance of light rain after 4pm. Cloudy, with a high near 43. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A chance of light rain, mainly before 4am. Widespread fog, mainly between 8pm and 3am. Otherwise, cloudy, with a low around 34. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly sunny, with a high near 48. West wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 31. West wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
A chance of showers after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Friday
Showers likely. Cloudy, with a high near 57. Chance of precipitation is 60%.
Friday Night
Showers likely. Cloudy, with a low around 46. Chance of precipitation is 70%.
Saturday
Showers likely. Mostly cloudy, with a high near 55. Chance of precipitation is 70%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lambertville NJ
 40.38°N 74.93°W (Elev. 203 ft)
Last Update:
2:00 am EST Jan 6, 2026
Forecast Valid:
3am EST Jan 6, 2026-6pm EST Jan 12, 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