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

37°F

3°C

Humidity 76%
Wind Speed W 16 G 30 mph
Barometer 29.59 in (1001.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 17 Mar 2:53 am EDT
Extended Forecast for

Lawrenceville NJ

  • Overnight

    Overnight: Cloudy early, then becoming partly cloudy, with a low around 32. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.

    Low: 32 °F

    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 40. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 40 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming clear, with a low around 24. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. Southwest wind around 5 mph.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. South wind around 5 mph becoming calm.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of rain. Mostly cloudy, with a low around 37. Chance of precipitation is 40%.

    Low: 37 °F

    Chance Rain

Detailed Forecast

Overnight
Cloudy early, then becoming partly cloudy, with a low around 32. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.
Tuesday
Partly sunny, with a high near 40. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Tuesday Night
Mostly cloudy, then gradually becoming clear, with a low around 24. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 40. Southwest wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 27. South wind around 5 mph becoming calm.
Thursday
Partly sunny, with a high near 49.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 58.
Friday Night
A chance of rain. Mostly cloudy, with a low around 37. Chance of precipitation is 40%.
Saturday
A chance of rain. Partly sunny, with a high near 55. Chance of precipitation is 30%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Sunday
Mostly cloudy, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 50.
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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:
1:37 am EDT Mar 17, 2026
Forecast Valid:
3am EDT Mar 17, 2026-6pm EDT Mar 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