Briefing for Flash Flood and Severe Storm Risks through Tonight

Potentially significant flash flooding is possible this afternoon into tonight. Some isolated severe thunderstorms are also possible. See this briefing for details on these hazards. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fog/Mist

71°F

22°C

Humidity 94%
Wind Speed NE 7 mph
Barometer 29.98 in (1014.3 mb)
Dewpoint 69°F (21°C)
Visibility 5.00 mi
Last update 31 Jul 6:53 pm EDT
Extended Forecast for

Cranbury NJ

Flood Watch July 31, 07:20pm until August 1, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 31, 07:20pm until August 1, 12:00am

    NOW until 12:00am Fri

    Flood Watch

  • Tonight

    Low: 63 °F

    Severe
    Thunderstorms
    then Chance
    T-storms

  • Friday

    Friday: A chance of showers before 3pm, then a slight chance of showers after 5pm.  Mostly cloudy, with a high near 74. Northeast wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. Northeast wind around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 81. North wind around 5 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
Showers and thunderstorms before 9pm, then showers likely and possibly a thunderstorm between 9pm and midnight, then a chance of showers and thunderstorms after midnight. Some of the storms could be severe and produce heavy rainfall. Low around 63. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A chance of showers before 3pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 74. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Partly cloudy, with a low around 60. Northeast wind around 5 mph.
Saturday
Sunny, with a high near 81. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 58. Calm wind.
Sunday
Sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Mostly cloudy, with a low around 64.
Wednesday
Mostly cloudy, with a high near 81.
Wednesday Night
Mostly cloudy, with a low around 65.
Thursday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Cranbury NJ
 40.31°N 74.51°W (Elev. 112 ft)
6:51 pm EDT Jul 31, 2025
7pm EDT Jul 31, 2025-6pm EDT Aug 7, 2025
 
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Additional Resources

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