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 43%
Wind Speed E 13 G 20 mph
Barometer 30.33 in (1026.6 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 22 May 3:53 pm EDT
Extended Forecast for

2 Miles S Lambertville NJ

  • Tonight

    Tonight: A chance of rain, mainly after 3am. Cloudy, with a low around 46. East wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Cloudy then
    Chance Rain

  • Saturday

    Saturday: Rain, mainly after 7am. High near 54. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 54 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 49. East wind around 15 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 49 °F

    Rain

  • Sunday

    Sunday: Rain before noon, then showers between noon and 2pm, then showers likely and possibly a thunderstorm after 2pm. High near 65. Northeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 56. Northeast wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Showers
    Likely

  • Memorial Day

    Memorial Day: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 74 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 80.

    High: 80 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of rain, mainly after 3am. Cloudy, with a low around 46. East wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain, mainly after 7am. High near 54. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain. Low around 49. East wind around 15 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Rain before noon, then showers between noon and 2pm, then showers likely and possibly a thunderstorm after 2pm. High near 65. Northeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 56. Northeast wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Memorial Day
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Tuesday
Mostly cloudy, with a high near 80.
Tuesday Night
Mostly cloudy, with a low around 59.
Wednesday
Partly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Lambertville NJ
 40.35°N 74.93°W (Elev. 387 ft)
Last Update:
2:46 pm EDT May 22, 2026
Forecast Valid:
3pm EDT May 22, 2026-6pm EDT May 29, 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