National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Light Snow Fog/Mist

32°F

0°C

Humidity 92%
Wind Speed SW 3 mph
Barometer 30.02 in (1016.1 mb)
Dewpoint 30°F (-1°C)
Visibility 2.00 mi
Last update 17 Jan 1:53 pm EST
Extended Forecast for

3 Miles SE Sergeantsville NJ

Winter Weather Advisory January 17, 02:13pm until January 17, 04:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 17, 02:13pm until January 17, 04:00pm

    NOW until 4:00pm Sat

    Winter Weather Advisory

  • This Afternoon

    High: 36 °F

    Chance Snow

  • Tonight

    Tonight: A slight chance of snow after 4am. Mostly cloudy, with a low around 26. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A chance of snow, mainly after 7am. Cloudy, with a high near 35. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 17. West wind around 5 mph.

    Low: 17 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 33. Southwest wind 5 to 15 mph.

    High: 33 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 21.

    High: 21 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 8.

    Low: 8 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A chance of snow before 3pm. Mostly cloudy, with a high near 36. Southwest wind around 5 mph. Chance of precipitation is 30%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
A slight chance of snow after 4am. Mostly cloudy, with a low around 26. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.
Sunday
A chance of snow, mainly after 7am. Cloudy, with a high near 35. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Sunday Night
Partly cloudy, with a low around 17. West wind around 5 mph.
M.L.King Day
Mostly sunny, with a high near 33. Southwest wind 5 to 15 mph.
Monday Night
Partly cloudy, with a low around 10.
Tuesday
Sunny, with a high near 21.
Tuesday Night
Mostly clear, with a low around 8.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Mostly sunny, with a high near 31.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Sergeantsville NJ
 40.42°N 74.92°W (Elev. 200 ft)
Last Update:
9:30 am EST Jan 17, 2026
Forecast Valid:
2pm EST Jan 17, 2026-6pm EST Jan 23, 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