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

33°F

1°C

Humidity 100%
Wind Speed NE 7 mph
Barometer 29.91 in (1012.6 mb)
Dewpoint 33°F (1°C)
Visibility 0.25 mi
Wind Chill27°F (-3°C)
Last update 18 Feb 7:53 am EST
Extended Forecast for

Lawrenceville NJ

Dense Fog Advisory February 18, 08:07am until February 18, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory February 18, 08:07am until February 18, 10:00am

    NOW until 10:00am Wed

    Dense Fog Advisory

  • Today

    High: 45 °F

    Chance Rain
    and Dense Fog
    then Rain

  • Tonight

    Tonight: A chance of rain before 9pm. Patchy fog after 9pm. Otherwise, cloudy, with a low around 35. Calm wind becoming northeast around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance Rain
    and Patchy
    Fog then
    Patchy Fog

  • Thursday

    Thursday: A chance of rain after 1pm. Patchy fog before 9am. Otherwise, cloudy, with a high near 42. East wind around 5 mph. Chance of precipitation is 30%.

    High: 42 °F

    Patchy Fog
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 35. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 35 °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 49.

    High: 49 °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

Detailed Forecast

Today
Rain, mainly after 3pm. Widespread dense fog, mainly before 10am. High near 45. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of rain before 9pm. Patchy fog after 9pm. Otherwise, cloudy, with a low around 35. Calm wind becoming northeast around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of rain after 1pm. Patchy fog before 9am. Otherwise, cloudy, with a high near 42. East wind around 5 mph. Chance of precipitation is 30%.
Thursday Night
Rain. Low around 35. 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 49.
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. Mostly 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 38. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Sunny, with a high near 33.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lawrenceville NJ
 40.31°N 74.74°W (Elev. 167 ft)
Last Update:
7:34 am EST Feb 18, 2026
Forecast Valid:
8am EST Feb 18, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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