Briefing for Flash Flood, Severe Thunderstorm, and Heat Risks through Thursday

Scattered showers and thunderstorms with locally heavy rainfall may lead to areas of flash flooding through tonight. There is potential for isolated severe thunderstorms with damaging wind gusts tonight and Thursday. Hot and very humid conditions are expected Thursday. See this briefing for details on these threats. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Thunderstorm Heavy Rain Fog/Mist

76°F

24°C

Humidity	88%
Wind Speed	SW 10 G 30 mph
Barometer	29.95 in (1013.5 mb)
Dewpoint	72°F (22°C)
Visibility	1.50 mi
Heat Index	76°F (24°C)
Last update	16 Jul 7:53 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Princeton Junction NJ

Flood Watch until July 17, 03:00am

Heat Advisory July 17, 10:00am until July 17, 08:00pm

Click here for hazard details and duration

Flood Watch

Heat Advisory

Flood Watch until July 17, 03:00am
NOW until 3:00am Thu
Flood Watch
Tonight
Low: 73 °F
Chance
T-storms
Thursday
High: 92 °F
Chance
T-storms then
Slight Chance
T-storms
Thursday Night
Low: 73 °F
Partly Cloudy
Friday
High: 86 °F
Mostly Sunny
Friday Night
Low: 65 °F
Mostly Clear
Saturday
High: 87 °F
Mostly Sunny
then Slight
Chance
Showers
Saturday Night
Low: 70 °F
Chance
T-storms then
Showers
Likely
Sunday
High: 86 °F
Showers
Likely

Detailed Forecast

Tonight

A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

A chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 92. West wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Partly cloudy, with a low around 73. Southwest wind around 5 mph.

Friday

Mostly sunny, with a high near 86. Northwest wind around 5 mph.

Friday Night

Mostly clear, with a low around 65. Calm wind.

Saturday

A slight chance of showers after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 20%.

Saturday Night

A chance of thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

Sunday

Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.

Sunday Night

Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 60%.

Monday

Mostly sunny, with a high near 84.

Monday Night

Partly cloudy, with a low around 64.

Tuesday

Mostly sunny, with a high near 84.

Tuesday Night

Partly cloudy, with a low around 66.