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

Areas of Excessive Rainfall and Severe Thunderstorms on Wednesday

Heavy to excessive rainfall may produce additional flash flooding Wednesday across parts of the southern Plains where the greatest risk is along the Red River Valley into western Arkansas. Scattered severe thunderstorms are also possible centered on central Texas to eastern Oklahoma and western Arkansas. Large hail, damaging wind, and a few tornadoes will be possible. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

66°F

19°C

Humidity 73%
Wind Speed Calm
Barometer 29.89 in (1011.3 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 30 Apr 4:53 am EDT
Extended Forecast for

Princeton NJ

  • Today

    Today: Mostly sunny, with a high near 75. Northwest wind around 10 mph.

    High: 75 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 46. Northwest wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 56. Southeast wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. South wind 5 to 15 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 75. Northwest wind around 10 mph.
Tonight
Partly cloudy, with a low around 46. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 74. Northeast wind around 5 mph becoming southeast in the afternoon.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 56. Southeast wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. South wind 5 to 15 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. 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, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Sunday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.
Sunday Night
A chance of showers before 2am. Partly cloudy, with a low around 48. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly sunny, with a high near 71. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton NJ
 40.34°N 74.64°W (Elev. 98 ft)
Last Update:
4:27 am EDT Apr 30, 2025
Forecast Valid:
5am EDT Apr 30, 2025-6pm EDT May 6, 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