Heavy Rainfall Threat The Next Few Days Across The Eastern U.S.

A strong cold front will gradually push through the Eastern U.S. over the next few days and will likely produce heavy rain and severe weather. The rainfall may become excessive and result in flash flooding. Flash flood watches are currently in effect from the coastal Carolinas to the Great Lakes. Read More >

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Partly Cloudy

70°F

21°C

Humidity 82%
Wind Speed E 5 mph
Barometer 30.25 in (1023.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 21 Sep 7:53 pm EDT
Extended Forecast for

Princeton NJ

  • Tonight

    Tonight: A slight chance of showers between 1am and 5am.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 64. East wind around 5 mph.  Chance of precipitation is 20%.

    Mostly Cloudy
    then Slight
    Chance
    Showers and
    Patchy Fog

    Low: 64 °F

  • Wednesday

    Wednesday: A slight chance of showers after 9am.  Patchy fog before 7am.  Otherwise, mostly cloudy, with a high near 80. Southeast wind 5 to 15 mph.  Chance of precipitation is 20%.

    Slight Chance
    Showers and
    Patchy Fog

    High: 80 °F

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 67. Southeast wind around 10 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers

    Low: 67 °F

  • Thursday

    Thursday: Showers likely, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall.  High near 75. South wind 10 to 15 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Heavy Rain

    High: 75 °F

  • Thursday
    Night

    Thursday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Some of the storms could produce heavy rainfall.  Low around 56. South wind around 5 mph becoming west after midnight.  Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Heavy Rain

    Low: 56 °F

  • Friday

    Friday: Showers likely, mainly before 8am.  Partly sunny, with a high near 71. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Showers
    Likely

    High: 71 °F

  • Friday
    Night

    Friday Night: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 53.

    Partly Cloudy
    then Patchy
    Fog

    Low: 53 °F

  • Saturday

    Saturday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 73.

    Patchy Fog
    then Mostly
    Sunny

    High: 73 °F

  • Saturday
    Night

    Saturday Night: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 56.

    Partly Cloudy
    then Patchy
    Fog

    Low: 56 °F

Detailed Forecast

Tonight
A slight chance of showers between 1am and 5am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 64. East wind around 5 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers after 9am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 80. Southeast wind 5 to 15 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southeast wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. High near 75. South wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Some of the storms could produce heavy rainfall. Low around 56. South wind around 5 mph becoming west after midnight. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Friday
Showers likely, mainly before 8am. Partly sunny, with a high near 71. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 53.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 73.
Saturday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 56.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 76.
Click Map For Forecast
Point Forecast:
Princeton NJ
 40.35°N 74.67°W (Elev. 190 ft)
7:30 pm EDT Sep 21, 2021
8pm EDT Sep 21, 2021-6pm EDT Sep 28, 2021
 
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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