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.

Fair

24°F

-4°C

Humidity 52%
Wind Speed N 7 mph
Barometer 30.55 in (1034.3 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 2 Mar 3:53 am EST
Extended Forecast for

Dayton NJ

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 34. North wind around 5 mph becoming calm.

    High: 34 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 24. Calm wind.

    Low: 24 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Snow, possibly mixed with rain and freezing rain, becoming all rain after 10am. High near 42. Calm wind becoming east around 5 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Wintry Mix
    then Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 39. Calm wind becoming southwest around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain

  • Wednesday

    Wednesday: A chance of showers, mainly after 1pm. Mostly cloudy, with a high near 52. Calm wind becoming northeast around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 1am. Cloudy, with a low around 41. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers before 1pm. Cloudy, with a high near 59. Chance of precipitation is 40%.

    High: 59 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.

    Low: 45 °F

    Showers
    Likely

  • Friday

    Friday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 34. North wind around 5 mph becoming calm.
Tonight
Increasing clouds, with a low around 24. Calm wind.
Tuesday
Snow, possibly mixed with rain and freezing rain, becoming all rain after 10am. High near 42. Calm wind becoming east around 5 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain. Low around 39. Calm wind becoming southwest around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of showers, mainly after 1pm. Mostly cloudy, with a high near 52. Calm wind becoming northeast around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers likely, mainly after 1am. Cloudy, with a low around 41. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of showers before 1pm. Cloudy, with a high near 59. Chance of precipitation is 40%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Friday
Mostly cloudy, with a high near 53.
Friday Night
A chance of showers after 1am. Cloudy, with a low around 41. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.
Sunday
A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dayton NJ
 40.37°N 74.52°W (Elev. 98 ft)
Last Update:
4:09 am EST Mar 2, 2026
Forecast Valid:
4am EST Mar 2, 2026-6pm EDT Mar 8, 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