Severe Thunderstorms and Heat Impact July 4th Weekend

A threat for severe thunderstorms will impact the July 4th weekend, bringing the potential for damaging wind gusts and localized flash flooding through Sunday. Hazardous heat continues into Sunday as well. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Partly Cloudy

71°F

22°C

Humidity 96%
Wind Speed E 7 mph
Barometer 29.97 in (1013.9 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 6 Jul 3:53 am EDT
Extended Forecast for

Cranbury NJ

Flood Watch July 6, 04:47am until July 6, 08:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 6, 04:47am until July 6, 08:00pm

    NOW until 8:00pm Mon

    Flood Watch

  • Overnight

    Low: 68 °F

    Heavy Rain

  • Monday

    Monday: Showers and possibly a thunderstorm.  High near 77. East wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 77 °F

    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 9pm, then a chance of showers and thunderstorms after 9pm.  Cloudy, with a low around 63. Northeast wind 5 to 10 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 76. Northeast wind around 10 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 2am.  Mostly cloudy, with a low around 61. Northeast wind around 5 mph.  Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could produce heavy rainfall. Cloudy, with a low around 68. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and possibly a thunderstorm. High near 77. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 9pm, then a chance of showers and thunderstorms after 9pm. Cloudy, with a low around 63. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 76. Northeast wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 61. Northeast wind around 5 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Saturday Night
A chance of thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Cranbury NJ
 40.31°N 74.53°W (Elev. 92 ft)
4:08 am EDT Jul 6, 2026
4am EDT Jul 6, 2026-6pm EDT Jul 12, 2026
 
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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