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.

Light Rain

51°F

11°C

Humidity 92%
Wind Speed N 12 G 21 mph
Barometer 29.39 in (994.8 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 12 Nov 5:53 pm EST
Extended Forecast for

Lawrenceville NJ

  • This Afternoon

    This Afternoon: Showers. Steady temperature around 55. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Showers

  • Tonight

    Tonight: Showers likely before 1am, then rain after 1am. Low around 37. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain

  • Friday

    Friday: Rain. High near 46. North wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 31. Northwest wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 48. Northwest wind 5 to 10 mph.

    High: 48 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

Detailed Forecast

This Afternoon
Showers. Steady temperature around 55. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers likely before 1am, then rain after 1am. Low around 37. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 46. North wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 31. Northwest wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, with a high near 48. Northwest wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 55.
Tuesday Night
Clear, with a low around 29.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Clear, with a low around 31.
Thursday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lawrenceville NJ
 40.29°N 74.74°W (Elev. 102 ft)
Last Update:
5:05 pm EST Nov 12, 2026
Forecast Valid:
5pm EST Nov 12, 2026-6pm EST Nov 19, 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