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Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

27°F

-3°C

Humidity 92%
Wind Speed NW 3 mph
Barometer 30.10 in (1018.7 mb)
Dewpoint 25°F (-4°C)
Visibility NA
Last update 17 Jan 11:53 pm EST
Extended Forecast for

Lawrenceville NJ

Winter Weather Advisory January 18, 06:00am until January 18, 08:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: A chance of snow, mainly after 4am. Areas of dense fog before 1am. Otherwise, cloudy, with a low around 30. Calm wind. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance Snow
    and Areas
    Dense Fog

  • Sunday

    Sunday: Snow likely, mainly between 8am and 4pm. Cloudy, with a high near 33. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 33 °F

    Snow Likely

  • Sunday Night

    Sunday Night: A chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 19. West wind 5 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Chance Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 34. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 23.

    High: 23 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 8.

    Low: 8 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of snow, mainly after 4am. Areas of dense fog before 1am. Otherwise, cloudy, with a low around 30. Calm wind. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Snow likely, mainly between 8am and 4pm. Cloudy, with a high near 33. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
A chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 19. West wind 5 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.
M.L.King Day
Mostly sunny, with a high near 34. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 13. West wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 23.
Tuesday Night
Mostly clear, with a low around 8.
Wednesday
Mostly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 17.
Friday
Mostly sunny, with a high near 32.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
A chance of snow. Partly sunny, with a high near 33. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lawrenceville NJ
 40.28°N 74.71°W (Elev. 82 ft)
Last Update:
8:24 pm EST Jan 17, 2026
Forecast Valid:
12am EST Jan 18, 2026-6pm EST Jan 24, 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