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

Potential Heavy Rain Event For The Northeast and New York City

A weather system will slowly move through the Northeast on Friday to produce widespread heavy to excessive rainfall across parts of the region. The excessive rainfall threat may result in flash, urban and small stream flooding, especially for the entire New York City metro area into parts of Connecticut. Locally heavy rain is also possible in parts of Florida Friday through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

60°F

16°C

Humidity 96%
Wind Speed NE 9 mph
Barometer 30.14 in (1020.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 29 Sep 8:53 am EDT
Extended Forecast for

Princeton North NJ

Flood Watch until September 30, 06:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until September 30, 06:00am

    NOW until
    6:00am Sat

    Flood Watch

  • Today

    Today: Showers and possibly a thunderstorm. Some of the storms could produce heavy rain. High near 63. Northeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Heavy Rain

    High: 63 °F

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rain. Patchy fog after 5am. Otherwise, cloudy, with a low around 56. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Heavy Rain
    and Patchy
    Fog

    Low: 56 °F

  • Saturday

    Saturday: A chance of showers, mainly before 2pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 66. North wind around 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers and
    Patchy Fog

    High: 66 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 54. North wind around 5 mph.

    Partly Cloudy

    Low: 54 °F

  • Sunday

    Sunday: Sunny, with a high near 76. North wind 5 to 10 mph.

    Sunny

    High: 76 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 57.

    Mostly Clear

    Low: 57 °F

  • Monday

    Monday: Sunny, with a high near 78.

    Sunny

    High: 78 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 55.

    Mostly Clear

    Low: 55 °F

Detailed Forecast

Today
Showers and possibly a thunderstorm. Some of the storms could produce heavy rain. High near 63. Northeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Tonight
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rain. Patchy fog after 5am. Otherwise, cloudy, with a low around 56. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers, mainly before 2pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 66. North wind around 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 54. North wind around 5 mph.
Sunday
Sunny, with a high near 76. North wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 74.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Princeton North NJ
 40.37°N 74.64°W (Elev. 98 ft)
Last Update:
7:08 am EDT Sep 29, 2023
Forecast Valid:
9am EDT Sep 29, 2023-6pm EDT Oct 5, 2023
 
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