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 with Haze

31°F

-1°C

Humidity 79%
Wind Speed Calm
Barometer 30.09 in (1018.5 mb)
Dewpoint 25°F (-4°C)
Visibility 5.00 mi
Last update 15 Feb 8:53 am EST
Extended Forecast for

Lawrenceville NJ

  • Today

    Today: Mostly cloudy, with a high near 42. Calm wind becoming east around 5 mph in the afternoon.

    High: 42 °F

    Mostly Cloudy

  • Tonight

    Tonight: Snow, possibly mixed with rain before 3am, then a chance of snow. Low around 30. Northeast wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 30 °F

    Snow then
    Rain/Snow
    Likely

  • Washington's Birthday

    Washington's Birthday: Mostly cloudy, with a high near 41. Northeast wind around 5 mph becoming calm in the afternoon.

    High: 41 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 47. Calm wind becoming southwest around 5 mph.

    High: 47 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Cloudy, with a high near 44. Chance of precipitation is 50%.

    High: 44 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 50%.

    Low: 36 °F

    Chance Rain

  • Thursday

    Thursday: Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 42. Calm wind becoming east around 5 mph in the afternoon.
Tonight
Snow, possibly mixed with rain before 3am, then a chance of snow. Low around 30. Northeast wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Washington's Birthday
Mostly cloudy, with a high near 41. Northeast wind around 5 mph becoming calm in the afternoon.
Monday Night
Mostly cloudy, with a low around 30. Calm wind.
Tuesday
Partly sunny, with a high near 47. Calm wind becoming southwest around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
A chance of rain. Cloudy, with a high near 44. Chance of precipitation is 50%.
Wednesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 50%.
Thursday
Mostly cloudy, with a high near 46.
Thursday Night
A chance of rain after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Friday
Rain likely. Mostly cloudy, with a high near 47. Chance of precipitation is 70%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Saturday
A chance of rain. Partly sunny, with a high near 45. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lawrenceville NJ
 40.28°N 74.71°W (Elev. 82 ft)
Last Update:
4:14 am EST Feb 15, 2026
Forecast Valid:
9am EST Feb 15, 2026-6pm EST Feb 21, 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