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Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Light Snow Fog/Mist

-1°C

31°F

Humidity 96%
Wind Speed NW 13 km/h
Barometer 1011.7 mb (29.89 in)
Dewpoint -1°C (30°F)
Visibility 1.61 km
Wind Chill-4°C (24°F)
Last update 18 Jan 6:53 pm EST
Extended Forecast for

Trenton, Mercer County Airport NJ

Winter Weather Advisory January 18, 07:01pm until January 18, 08:00pm
Click here for hazard details and duration
...
  •  
    Winter Weather Advisory January 18, 07:01pm until January 18, 08:00pm

    NOW until 8:00pm Sun

    Winter Weather Advisory

  • Tonight

    Low: -8 °C

    Chance Snow
    then Partly
    Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 1. Southwest wind 10 to 20 km/h, with gusts as high as 35 km/h.

    High: 1 °C

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around -11. West wind 15 to 20 km/h.

    Low: -11 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near -6. West wind 15 to 25 km/h.

    High: -6 °C

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around -14. West wind 5 to 10 km/h.

    Low: -14 °C

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 0.

    High: 0 °C

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -4.

    Low: -4 °C

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain and snow after 1pm. Partly sunny, with a high near 3. Chance of precipitation is 30%.

    High: 3 °C

    Partly Sunny
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
A chance of snow, mainly before 9pm. Cloudy during the early evening, then gradual clearing, with a low around -8. West wind 10 to 15 km/h. Chance of precipitation is 40%. Total nighttime snow accumulation of 1 to 3 centimeters possible.
M.L.King Day
Mostly sunny, with a high near 1. Southwest wind 10 to 20 km/h, with gusts as high as 35 km/h.
Monday Night
Mostly clear, with a low around -11. West wind 15 to 20 km/h.
Tuesday
Sunny, with a high near -6. West wind 15 to 25 km/h.
Tuesday Night
Mostly clear, with a low around -14. West wind 5 to 10 km/h.
Wednesday
Mostly sunny, with a high near 0.
Wednesday Night
Mostly cloudy, with a low around -4.
Thursday
A chance of rain and snow after 1pm. Partly sunny, with a high near 3. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around -9.
Friday
Mostly sunny, with a high near -1.
Friday Night
Partly cloudy, with a low around -8.
Saturday
A chance of snow. Partly sunny, with a high near -2. Chance of precipitation is 30%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around -11. Chance of precipitation is 30%.
Sunday
A chance of snow. Partly sunny, with a high near -6. 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 m)
Last Update:
4:12 pm EST Jan 18, 2026
Forecast Valid:
7pm EST Jan 18, 2026-6pm EST Jan 25, 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