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

43°F

6°C

Humidity 40%
Wind Speed Calm
Barometer 29.89 in (1011.8 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 26 Feb 11:53 am EST
Extended Forecast for

Lawrenceville NJ

  • This Afternoon

    This Afternoon: A chance of rain and snow, mainly between 2pm and 4pm. Mostly cloudy, with a high near 42. Northwest wind around 5 mph becoming southeast. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: Partly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 46. Calm wind becoming south around 5 mph.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 53. Calm wind becoming southwest around 5 mph.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Monday

    Monday: A chance of snow. Mostly cloudy, with a high near 29. Chance of precipitation is 50%.

    High: 29 °F

    Chance Snow

Detailed Forecast

This Afternoon
A chance of rain and snow, mainly between 2pm and 4pm. Mostly cloudy, with a high near 42. Northwest wind around 5 mph becoming southeast. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tonight
Partly cloudy, with a low around 21. Calm wind.
Friday
Sunny, with a high near 46. Calm wind becoming south around 5 mph.
Friday Night
Mostly clear, with a low around 27. Calm wind.
Saturday
Sunny, with a high near 53. Calm wind becoming southwest around 5 mph.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 17.
Monday
A chance of snow. Mostly cloudy, with a high near 29. Chance of precipitation is 50%.
Monday Night
A chance of snow before 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 30%.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
Tuesday Night
Rain and snow likely. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
Wednesday
A chance of rain. Partly sunny, with a high near 45. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lawrenceville NJ
 40.28°N 74.71°W (Elev. 82 ft)
Last Update:
4:12 am EST Feb 26, 2026
Forecast Valid:
12pm EST Feb 26, 2026-6pm EST Mar 4, 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