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

37°F

3°C

Humidity 70%
Wind Speed W 10 G 26 mph
Barometer 29.44 in (996.4 mb)
Dewpoint 28°F (-2°C)
Visibility 7.00 mi
Wind Chill30°F (-1°C)
Last update 15 Jan 7:53 am EST
Extended Forecast for

Trenton NJ

  • Today

    Today: Cloudy through mid morning, then becoming mostly sunny, with a high near 38. Breezy, with a west wind 15 to 20 mph.

    High: 38 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Breezy, with a west wind 15 to 20 mph.

    Low: 21 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 35. West wind 10 to 15 mph.

    High: 35 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of snow after 1am. Mostly cloudy, with a low around 27. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: A chance of snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of rain after 4pm. Mostly cloudy, with a high near 43. South wind around 5 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 43 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A slight chance of rain before 1am, then a slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.

    Low: 27 °F

    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of snow. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.

    High: 34 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 31.

    High: 31 °F

    Sunny

Detailed Forecast

Today
Cloudy through mid morning, then becoming mostly sunny, with a high near 38. Breezy, with a west wind 15 to 20 mph.
Tonight
Mostly cloudy, with a low around 21. Breezy, with a west wind 15 to 20 mph.
Friday
Sunny, with a high near 35. West wind 10 to 15 mph.
Friday Night
A slight chance of snow after 1am. Mostly cloudy, with a low around 27. South wind around 5 mph. Chance of precipitation is 20%.
Saturday
A chance of snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of rain after 4pm. Mostly cloudy, with a high near 43. South wind around 5 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday Night
A slight chance of rain before 1am, then a slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.
Sunday
A chance of snow. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 19.
M.L.King Day
Sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Sunny, with a high near 23.
Tuesday Night
Mostly clear, with a low around 10.
Wednesday
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trenton NJ
 40.23°N 74.78°W (Elev. 33 ft)
Last Update:
4:14 am EST Jan 15, 2026
Forecast Valid:
8am EST Jan 15, 2026-6pm EST Jan 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation