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

32°F

0°C

Humidity 52%
Wind Speed NW 12 mph
Barometer 29.92 in (1012.8 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 12 Feb 2:53 am EST
Extended Forecast for

Trenton, Mercer County Airport NJ

  • Overnight

    Overnight: Mostly cloudy, with a low around 26. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 33. Northwest wind 10 to 15 mph.

    High: 33 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 16. Northwest wind 5 to 10 mph.

    Low: 16 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 35. West wind around 5 mph.

    High: 35 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of snow showers after 1am. Partly cloudy, with a low around 19. West wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 19 °F

    Partly Cloudy
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and snow after 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 26. West wind around 10 mph, with gusts as high as 20 mph.
Thursday
Mostly cloudy, with a high near 33. Northwest wind 10 to 15 mph.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 16. Northwest wind 5 to 10 mph.
Friday
Sunny, with a high near 35. West wind around 5 mph.
Friday Night
A slight chance of snow showers after 1am. Partly cloudy, with a low around 19. West wind around 5 mph becoming calm. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
A chance of rain and snow after 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Washington's Birthday
Partly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A chance of rain. Cloudy, with a high near 49. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trenton, Mercer County Airport NJ
 40.28°N 74.83°W (Elev. 200 ft)
Last Update:
1:48 am EST Feb 12, 2026
Forecast Valid:
3am EST Feb 12, 2026-6pm EST Feb 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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