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

Excessive Rainfall in the Southern Plains, Ozarks, and Upper Midwest Thursday

Heavy thunderstorms will continue areas of excessive rainfall and locally considerable flooding over parts of the southern Plains into the mid-Mississippi River Valley through Friday. Heavy to excessive rainfall may bring flash and urban flooding, along with isolated riverine flooding to a part of the Upper Midwest Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

76°F

24°C

Humidity 64%
Wind Speed W 9 mph
Barometer 30.06 in (1017.0 mb)
Dewpoint 63°F (17°C)
Visibility 9.00 mi
Heat Index78°F (26°C)
Last update 12 Jun 8:53 am EDT
Extended Forecast for

Princeton NJ

  • Today

    Today: Sunny, with a high near 89. West wind around 5 mph.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 11pm and midnight. Increasing clouds, with a low around 64. Calm wind. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. East wind around 5 mph. Chance of precipitation is 20%.

    High: 81 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 62. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 2pm. Cloudy, with a high near 72. Northeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Cloudy, with a low around 61. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers. Cloudy, with a high near 72. Chance of precipitation is 50%.

    High: 72 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Cloudy, with a low around 61. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers. Cloudy, with a high near 71. Chance of precipitation is 40%.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 89. West wind around 5 mph.
Tonight
A slight chance of showers and thunderstorms between 11pm and midnight. Increasing clouds, with a low around 64. Calm wind. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. East wind around 5 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 62. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers, with thunderstorms also possible after 2pm. Cloudy, with a high near 72. Northeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Cloudy, with a low around 61. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers. Cloudy, with a high near 72. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms. Cloudy, with a low around 61. Chance of precipitation is 40%.
Monday
A chance of showers. Cloudy, with a high near 71. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 77. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton NJ
 40.37°N 74.67°W (Elev. 256 ft)
Last Update:
4:11 am EDT Jun 12, 2025
Forecast Valid:
9am EDT Jun 12, 2025-6pm EDT Jun 18, 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