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

36°F

2°C

Humidity 97%
Wind Speed SE 3 mph
Barometer 30.36 in (1027.6 mb)
Dewpoint 35°F (2°C)
Visibility 8.00 mi
Last update 7 Mar 1:53 am EST
Extended Forecast for

2 Miles SSW Lawrenceville NJ

  • Overnight

    Overnight: A slight chance of rain after 3am. Patchy fog. Otherwise, cloudy, with a low around 37. Calm wind. Chance of precipitation is 20%.

    Low: 37 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Saturday

    Saturday: A chance of rain before 7am. Patchy fog between 11am and noon. Otherwise, cloudy, with a high near 50. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 50 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers likely, mainly after 1am. Mostly cloudy, with a temperature rising to around 56 by 5am. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F⇑

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 64. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41. West wind around 5 mph.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 1am. Partly cloudy, with a low around 52. Chance of precipitation is 30%.

    Low: 52 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
A slight chance of rain after 3am. Patchy fog. Otherwise, cloudy, with a low around 37. Calm wind. Chance of precipitation is 20%.
Saturday
A chance of rain before 7am. Patchy fog between 11am and noon. Otherwise, cloudy, with a high near 50. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Showers likely, mainly after 1am. Mostly cloudy, with a temperature rising to around 56 by 5am. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 64. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Partly cloudy, with a low around 41. West wind around 5 mph.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 74.
Tuesday Night
A chance of showers after 1am. Partly cloudy, with a low around 52. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 50%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 52. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
Mostly cloudy, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Lawrenceville NJ
 40.27°N 74.75°W (Elev. 95 ft)
Last Update:
12:17 am EST Mar 7, 2026
Forecast Valid:
2am EST Mar 7, 2026-6pm EDT Mar 13, 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