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

64°F

18°C

Humidity 58%
Wind Speed Vrbl 5 mph
Barometer 30.21 in (1022.4 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 15 Oct 11:53 am EDT
Extended Forecast for

Lambertville NJ

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 65. East wind around 5 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers, mainly after midnight. Low around 54. Southeast wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Mostly Cloudy
    then Showers

  • Friday

    Friday: Showers likely before noon, then a slight chance of showers and thunderstorms after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely then
    Partly Sunny

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. West wind 10 to 15 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers before 8am. Mostly sunny, with a high near 52. Breezy, with a north wind 15 to 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Breezy.
    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Areas of frost. Otherwise, mostly clear, with a low around 35.

    Low: 35 °F

    Areas Frost

  • Sunday

    Sunday: Areas of frost before 10am. Otherwise, sunny, with a high near 56.

    High: 56 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 65. East wind around 5 mph.
Tonight
Showers, mainly after midnight. Low around 54. Southeast wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely before noon, then a slight chance of showers and thunderstorms after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. West wind 10 to 15 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A chance of showers before 8am. Mostly sunny, with a high near 52. Breezy, with a north wind 15 to 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Areas of frost. Otherwise, mostly clear, with a low around 35.
Sunday
Areas of frost before 10am. Otherwise, sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 37.
Monday
Sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Lambertville NJ
 40.38°N 74.93°W (Elev. 203 ft)
Last Update:
4:09 am EDT Oct 15, 2026
Forecast Valid:
12pm EDT Oct 15, 2026-6pm EDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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