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

27°F

-3°C

Humidity 45%
Wind Speed Vrbl 7 mph
Barometer 30.40 in (1029.0 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 18 Mar 9:53 am EDT
Extended Forecast for

Lambertville NJ

  • Today

    Today: Cloudy early, then gradual clearing, with a high near 40. North wind around 5 mph becoming calm in the afternoon.

    High: 40 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Mostly clear, with a low around 28. Southeast wind around 5 mph.

    Low: 28 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 48. Calm wind becoming south around 5 mph in the afternoon.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain after 2pm. Partly sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 56 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 43. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain Likely

  • Saturday

    Saturday: Rain likely before 8am. Partly sunny, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Rain Likely
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 30%.

    High: 65 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Today
Cloudy early, then gradual clearing, with a high near 40. North wind around 5 mph becoming calm in the afternoon.
Tonight
Mostly clear, with a low around 28. Southeast wind around 5 mph.
Thursday
Mostly sunny, with a high near 48. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 33. Calm wind.
Friday
A slight chance of rain after 2pm. Partly sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 43. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain likely before 8am. Partly sunny, with a high near 60. Chance of precipitation is 60%.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
A chance of rain after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 30%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 28.
Tuesday
Mostly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lambertville NJ
 40.35°N 74.93°W (Elev. 387 ft)
Last Update:
4:34 am EDT Mar 18, 2026
Forecast Valid:
10am EDT Mar 18, 2026-6pm EDT Mar 24, 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