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.

Fair

66°F

19°C

Humidity 47%
Wind Speed NE 5 mph
Barometer 30.17 in (1020.9 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 15 Oct 3:53 pm EDT
Extended Forecast for

2 Miles WNW Lawrenceville NJ

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm, mainly after 5am. Increasing clouds, with a low around 54. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 5pm. High near 78. Southwest wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers after 3am. Low around 45. West wind 5 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 53. North wind around 15 mph, with gusts as high as 25 mph.

    High: 53 °F

    Gradual
    Clearing

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. North wind 5 to 10 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy frost between 8am and 9am. Otherwise, sunny, with a high near 57.

    High: 57 °F

    Patchy Frost
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm, mainly after 5am. Increasing clouds, with a low around 54. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 5pm. High near 78. Southwest wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers after 3am. Low around 45. West wind 5 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 53. North wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 34. North wind 5 to 10 mph.
Sunday
Patchy frost between 8am and 9am. Otherwise, sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Lawrenceville NJ
 40.31°N 74.77°W (Elev. 223 ft)
Last Update:
4:09 pm EDT Oct 15, 2026
Forecast Valid:
4pm EDT Oct 15, 2026-6pm EDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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