Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Mostly Cloudy

60°F

16°C

Humidity 35%
Wind Speed N 5 mph
Barometer 29.86 in (1010.7 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 2 May 2:53 pm EDT
Extended Forecast for

Trenton, Mercer County Airport NJ

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Calm wind becoming north around 5 mph after midnight.

    Low: 38 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 60. Breezy, with a northwest wind 10 to 20 mph.

    High: 60 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44. Southwest wind around 5 mph.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 72. Southwest wind 10 to 15 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. South wind around 10 mph.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers after 8am.  Mostly cloudy, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely.  Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Calm wind becoming north around 5 mph after midnight.
Sunday
Mostly sunny, with a high near 60. Breezy, with a northwest wind 10 to 20 mph.
Sunday Night
Partly cloudy, with a low around 44. Southwest wind around 5 mph.
Monday
Sunny, with a high near 72. Southwest wind 10 to 15 mph.
Monday Night
Mostly clear, with a low around 55. South wind around 10 mph.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly cloudy, with a low around 61.
Wednesday
A chance of showers after 8am. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Thursday
Showers. High near 68. Chance of precipitation is 80%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.
Friday
Sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 45.
Saturday
A chance of showers. Mostly sunny, with a high near 65. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Trenton, Mercer County Airport NJ
 40.27°N 74.8°W (Elev. 157 ft)
3:29 pm EDT May 2, 2026
3pm EDT May 2, 2026-6pm EDT May 9, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database