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

54°F

12°C

Humidity 45%
Wind Speed S 12 mph
Barometer 30.43 in (1030.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 9 Apr 6:53 pm EDT
Extended Forecast for

Trenton NJ

  • Tonight

    Tonight: Patchy frost after 1am. Otherwise, partly cloudy, with a low around 37. South wind 5 to 10 mph.

    Low: 37 °F

    Partly Cloudy
    then Patchy
    Frost

  • Friday

    Friday: Patchy fog before 9am. Patchy frost before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 70. South wind 5 to 10 mph.

    High: 70 °F

    Patchy Frost
    and Patchy
    Fog then
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 49. Southwest wind around 10 mph.

    Low: 49 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 64. Northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. North wind 5 to 10 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 80.

    High: 80 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy frost after 1am. Otherwise, partly cloudy, with a low around 37. South wind 5 to 10 mph.
Friday
Patchy fog before 9am. Patchy frost before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 70. South wind 5 to 10 mph.
Friday Night
Increasing clouds, with a low around 49. Southwest wind around 10 mph.
Saturday
Sunny, with a high near 64. Northwest wind around 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 39. North wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
Mostly cloudy, with a high near 80.
Monday Night
Mostly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Mostly cloudy, with a low around 63.
Wednesday
Partly sunny, with a high near 89.
Wednesday Night
Mostly cloudy, with a low around 64.
Thursday
Partly sunny, with a high near 84.
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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:
4:53 pm EDT Apr 9, 2026
Forecast Valid:
7pm EDT Apr 9, 2026-6pm EDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation