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

49°F

9°C

Humidity 71%
Wind Speed SW 8 mph
Barometer 30.02 in (1015.9 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 26 Mar 4:53 am EDT
Extended Forecast for

Trenton NJ

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 75. Southwest wind 10 to 15 mph.

    High: 75 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Showers, mainly after 1am. Low around 52. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, mainly before noon. Temperature falling to around 52 by 4pm. North wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F⇓

    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of rain before 2am, then a slight chance of rain and snow. Cloudy, then gradually becoming partly cloudy, with a low around 31. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Saturday

    Saturday: Sunny, with a high near 45. Northwest wind 10 to 15 mph.

    High: 45 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 75. Southwest wind 10 to 15 mph.
Tonight
Showers, mainly after 1am. Low around 52. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, mainly before noon. Temperature falling to around 52 by 4pm. North wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of rain before 2am, then a slight chance of rain and snow. Cloudy, then gradually becoming partly cloudy, with a low around 31. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
Sunny, with a high near 45. Northwest wind 10 to 15 mph.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 62.
Monday Night
A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 64. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Wednesday
A chance of rain. Partly sunny, with a high near 64. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trenton NJ
 40.22°N 74.75°W (Elev. 23 ft)
Last Update:
4:10 am EDT Mar 26, 2026
Forecast Valid:
5am EDT Mar 26, 2026-6pm EDT Apr 1, 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