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.

Fog/Mist

51°F

11°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 29.81 in (1008.7 mb)
Dewpoint 51°F (11°C)
Visibility 1.00 mi
Wind Chill49°F (9°C)
Last update 8 Mar 6:53 am EDT
Extended Forecast for

Monmouth Junction NJ

Dense Fog Advisory March 8, 07:27am until March 8, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory March 8, 07:27am until March 8, 09:00am

    NOW until 9:00am Sun

    Dense Fog Advisory

  • Today

    High: 69 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: Mostly clear, with a low around 42. West wind around 5 mph becoming calm after midnight.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. South wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 72.

    High: 72 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am. Cloudy, with a low around 60. Chance of precipitation is 50%.

    Low: 60 °F

    Cloudy then
    Chance
    Showers

Detailed Forecast

Today
A chance of showers, mainly before 8am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 69. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly clear, with a low around 42. West wind around 5 mph becoming calm after midnight.
Monday
Sunny, with a high near 69. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 42. South wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 72. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Mostly cloudy, with a high near 72.
Wednesday Night
A chance of showers after 2am. Cloudy, with a low around 60. Chance of precipitation is 50%.
Thursday
Rain showers likely before 2pm, then a chance of rain and snow showers. Cloudy, with a high near 60. Breezy. Chance of precipitation is 70%.
Thursday Night
A chance of rain and snow showers before 8pm. Partly cloudy, with a low around 30. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 49.
Friday Night
A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monmouth Junction NJ
 40.38°N 74.55°W (Elev. 98 ft)
Last Update:
4:09 am EDT Mar 8, 2026
Forecast Valid:
7am EDT Mar 8, 2026-6pm EDT Mar 14, 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