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

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

36°F

2°C

Humidity 50%
Wind Speed W 17 G 32 mph
Barometer 29.74 in (1006.6 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 8 Apr 8:53 am EDT
Extended Forecast for

3 Miles SSE Princeton Junction NJ

  • Today

    Today: Mostly sunny, with a high near 46. Breezy, with a west wind 20 to 25 mph, with gusts as high as 45 mph.

    High: 46 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Patchy frost after 2am. Otherwise, mostly clear, with a low around 26. Breezy, with a west wind 10 to 20 mph, with gusts as high as 35 mph.

    Low: 26 °F

    Mostly Clear
    and Breezy
    then Patchy
    Frost

  • Wednesday

    Wednesday: Patchy frost before 8am. Otherwise, sunny, with a high near 50. West wind around 5 mph.

    High: 50 °F

    Patchy Frost
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers after 2pm. Mostly cloudy, with a high near 55. Southeast wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Rain likely before 2am, then showers likely after 2am. Cloudy, with a low around 42. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Rain Likely

  • Friday

    Friday: Showers likely before 8am, then rain, mainly after 8am. High near 54. Chance of precipitation is 80%.

    High: 54 °F

    Rain

  • Friday Night

    Friday Night: Rain before 2am, then showers likely after 2am. Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Rain

  • Saturday

    Saturday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.

    High: 56 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 46. Breezy, with a west wind 20 to 25 mph, with gusts as high as 45 mph.
Tonight
Patchy frost after 2am. Otherwise, mostly clear, with a low around 26. Breezy, with a west wind 10 to 20 mph, with gusts as high as 35 mph.
Wednesday
Patchy frost before 8am. Otherwise, sunny, with a high near 50. West wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 33. Calm wind.
Thursday
A chance of showers after 2pm. Mostly cloudy, with a high near 55. Southeast wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely before 2am, then showers likely after 2am. Cloudy, with a low around 42. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely before 8am, then rain, mainly after 8am. High near 54. Chance of precipitation is 80%.
Friday Night
Rain before 2am, then showers likely after 2am. Low around 44. Chance of precipitation is 80%.
Saturday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly cloudy, with a high near 57.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Princeton Junction NJ
 40.27°N 74.6°W (Elev. 98 ft)
Last Update:
7:09 am EDT Apr 8, 2025
Forecast Valid:
9am EDT Apr 8, 2025-6pm EDT Apr 14, 2025
 
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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