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

35°F

2°C

Humidity 40%
Wind Speed W 8 mph
Barometer 30.13 in (1019.9 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 13 Feb 3:53 pm EST
Extended Forecast for

Trenton, Mercer County Airport NJ

  • Tonight

    Tonight: Isolated snow showers after 1am. Increasing clouds, with a low around 21. West wind around 5 mph. Chance of precipitation is 20%.

    Low: 21 °F

    Mostly Clear
    then Isolated
    Snow Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 42. Southwest wind 5 to 10 mph becoming northwest in the afternoon.

    High: 42 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. Northwest wind around 5 mph becoming calm.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 40. Calm wind becoming east around 5 mph in the afternoon.

    High: 40 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of snow, mainly before 1am. Mostly cloudy, with a low around 29. East wind around 5 mph becoming calm. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Isolated snow showers after 1am. Increasing clouds, with a low around 21. West wind around 5 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 42. Southwest wind 5 to 10 mph becoming northwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 24. Northwest wind around 5 mph becoming calm.
Sunday
Mostly cloudy, with a high near 40. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
A chance of snow, mainly before 1am. Mostly cloudy, with a low around 29. East wind around 5 mph becoming calm. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Washington's Birthday
Partly sunny, with a high near 44.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A chance of rain. Cloudy, with a high near 47. Chance of precipitation is 50%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Thursday
A chance of rain. Mostly cloudy, with a high near 47. Chance of precipitation is 30%.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Friday
A chance of rain. Mostly cloudy, with a high near 43. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Trenton, Mercer County Airport NJ
 40.27°N 74.8°W (Elev. 157 ft)
Last Update:
4:15 pm EST Feb 13, 2026
Forecast Valid:
4pm EST Feb 13, 2026-6pm EST Feb 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation