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

42°F

6°C

Humidity 62%
Wind Speed S 8 mph
Barometer 29.69 in (1004.9 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Wind Chill37°F (3°C)
Last update 14 Jan 12:53 am EST
Extended Forecast for

3 Miles ENE Trenton NJ

  • Overnight

    Overnight: Mostly cloudy, with a low around 38. Southwest wind around 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 51. Southwest wind around 5 mph becoming calm in the afternoon.

    High: 51 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am, then rain and snow. Low around 27. Light and variable wind becoming west 5 to 10 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Rain
    then
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 32. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain and snow after 1pm. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.

    High: 43 °F

    Partly Sunny
    then Chance
    Rain/Snow

  • Saturday Night

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

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 38. Southwest wind around 5 mph.
Wednesday
Mostly cloudy, with a high near 51. Southwest wind around 5 mph becoming calm in the afternoon.
Wednesday Night
A chance of rain before 1am, then rain and snow. Low around 27. Light and variable wind becoming west 5 to 10 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
A chance of rain and snow before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 32. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Thursday Night
Partly cloudy, with a low around 16. West wind around 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 33.
Friday Night
Mostly cloudy, with a low around 25.
Saturday
A chance of rain and snow after 1pm. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 18.
M.L.King Day
Partly sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Trenton NJ
 40.24°N 74.72°W (Elev. 46 ft)
Last Update:
4:12 pm EST Jan 13, 2026
Forecast Valid:
1am EST Jan 14, 2026-6pm EST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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