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.

Overcast

34°F

1°C

Humidity 85%
Wind Speed Calm
Barometer 30.17 in (1021.1 mb)
Dewpoint 30°F (-1°C)
Visibility 8.00 mi
Last update 17 Feb 2:53 am EST
Extended Forecast for

3 Miles N Lawrenceville NJ

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 46. Calm wind becoming southwest around 5 mph.

    High: 46 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 33. Calm wind.

    Low: 33 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Cloudy, with a high near 48. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 1am. Mostly cloudy, with a low around 36. Southwest wind around 5 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A slight chance of rain after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 20%.

    High: 47 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 50%.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain. High near 42. Chance of precipitation is 90%.

    High: 42 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain before 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 28. Calm wind.
Tuesday
Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 46. Calm wind becoming southwest around 5 mph.
Tuesday Night
Increasing clouds, with a low around 33. Calm wind.
Wednesday
Rain likely, mainly after 1pm. Cloudy, with a high near 48. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A slight chance of rain before 1am. Mostly cloudy, with a low around 36. Southwest wind around 5 mph becoming northwest after midnight. Chance of precipitation is 20%.
Thursday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 20%.
Thursday Night
A chance of rain after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 50%.
Friday
Rain. High near 42. Chance of precipitation is 90%.
Friday Night
A chance of rain before 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 45.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
A chance of rain and snow. Partly sunny, with a high near 39. Chance of precipitation is 40%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Lawrenceville NJ
 40.33°N 74.73°W (Elev. 207 ft)
Last Update:
4:16 pm EST Feb 16, 2026
Forecast Valid:
3am EST Feb 17, 2026-6pm EST Feb 23, 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