



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
NOW until 12:00am Fri
Flood Watch
Tonight
Low: 63 °F
Severe
Thunderstorms
then Chance
T-stormsFriday
High: 74 °F
Chance
ShowersFriday Night
Low: 60 °F
Partly Cloudy
Saturday
High: 81 °F
Sunny
Saturday Night
Low: 58 °F
Mostly Clear
Sunday
High: 84 °F
Sunny
Sunday Night
Low: 60 °F
Partly Cloudy
Monday
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%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Cranbury NJ
40.31°N 74.51°W (Elev. 112 ft)
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