National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fog/Mist

40°F

4°C

Humidity 86%
Wind Speed W 5 mph
Barometer 29.76 in (1007.2 mb)
Dewpoint 36°F (2°C)
Visibility 5.00 mi
Wind Chill36°F (2°C)
Last update 18 Feb 2:53 pm EST
Extended Forecast for

Lawrenceville NJ

  • This Afternoon

    This Afternoon: A chance of light rain, mainly after 3pm. Patchy fog. Otherwise, cloudy, with a high near 45. North wind around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance Light
    Rain and
    Patchy Fog

  • Tonight

    Tonight: Light rain likely, mainly between 7pm and 10pm. Patchy fog. Otherwise, cloudy, with a low around 35. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Light Rain
    Likely and
    Patchy Fog

  • Thursday

    Thursday: A slight chance of light rain before 11am, then a chance of light rain after noon. Patchy fog before 11am. Otherwise, cloudy, with a high near 44. East wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Chance Light
    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Rain likely with a chance of light rain before 7pm, then rain, mainly after 7pm. Low around 36. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Rain

  • Friday

    Friday: Rain. High near 44. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Rain

  • Friday Night

    Friday Night: A slight chance of rain before 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of rain and snow after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Partly Cloudy
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow before 1pm, then snow likely. Cloudy, with a high near 38. Chance of precipitation is 60%.

    High: 38 °F

    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
A chance of light rain, mainly after 3pm. Patchy fog. Otherwise, cloudy, with a high near 45. North wind around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Light rain likely, mainly between 7pm and 10pm. Patchy fog. Otherwise, cloudy, with a low around 35. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A slight chance of light rain before 11am, then a chance of light rain after noon. Patchy fog before 11am. Otherwise, cloudy, with a high near 44. East wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely with a chance of light rain before 7pm, then rain, mainly after 7pm. Low around 36. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 44. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A slight chance of rain before 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 50.
Saturday Night
A chance of rain and snow after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Sunday
A chance of rain and snow before 1pm, then snow likely. Cloudy, with a high near 38. Chance of precipitation is 60%.
Sunday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 60%.
Monday
A chance of snow. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Sunny, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
Lawrenceville NJ
 40.28°N 74.71°W (Elev. 82 ft)
Last Update:
12:57 pm EST Feb 18, 2026
Forecast Valid:
2pm EST Feb 18, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation