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Severe Thunderstorms, Heavy Rainfall and Dangerous Heat

Severe thunderstorms are expected today and Friday from the upper Midwest, central Great Lakes into the Ohio and mid-Mississippi Valley's. In addition, heavy rainfall threat increases on Friday across the Ohio Valley. Meanwhile, early summer-like heat wave across portions of southern Texas with new daily records are forecast today and through the weekend; The heat spreads across the Gulf States. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fog/Mist

64°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 29.80 in (1008.3 mb)
Dewpoint 64°F (18°C)
Visibility 2.50 mi
Last update 16 May 4:53 am EDT
Extended Forecast for

Princeton North NJ

Dense Fog Advisory May 16, 05:05am until May 16, 11:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory May 16, 05:05am until May 16, 11:00am

    NOW until 11:00am Fri

    Dense Fog Advisory

  • Today

    High: 79 °F

    Chance
    Showers and
    Areas Fog
    then Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 5am. Areas of fog between 11pm and 5am. Otherwise, mostly cloudy, with a low around 64. South wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms and
    Areas Fog

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. West wind 5 to 10 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 75. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Today
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 79. Light south wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms, mainly after 5am. Areas of fog between 11pm and 5am. Otherwise, mostly cloudy, with a low around 64. South wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Partly cloudy, with a low around 58. West wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 75. West wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Wednesday
Showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Thursday
A chance of showers. Mostly cloudy, with a high near 62. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton North NJ
 40.37°N 74.64°W (Elev. 98 ft)
Last Update:
4:13 am EDT May 16, 2025
Forecast Valid:
5am EDT May 16, 2025-6pm EDT May 22, 2025
 
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