Severe Thunderstorms and Possible Flooding in the East; Extreme Heat in the West.

Scattered severe storms with wind damage, large hail, and a few tornadoes will be possible this afternoon and evening across much of the Mid Atlantic and Southeast. Heavy rain may cause instances of flash flooding from eastern Kentucky to southern New York. Out west, dangerous heat will develop through Saturday, with record-breaking temperatures expected. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

72°F

22°C

Humidity	66%
Wind Speed	Calm
Barometer	29.48 in (997.6 mb)
Dewpoint	60°F (16°C)
Visibility	10.00 mi
Last update	30 May 7:53 pm EDT

More Information:

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

Extended Forecast for

Princeton NJ

Flood Watch until May 31, 08:00am

Tornado Watch until May 31, 12:00am

Click here for hazard details and duration

Flood Watch

Tornado Watch

Flood Watch until May 31, 08:00am
Tornado Watch until May 31, 12:00am
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 57 °F
Severe
Thunderstorms
then Heavy
Rain
Saturday
High: 71 °F
Showers
Likely then
Showers
Saturday Night
Low: 48 °F
Chance
T-storms then
Slight Chance
Showers
Sunday
High: 69 °F
Mostly Sunny
Sunday Night
Low: 47 °F
Partly Cloudy
Monday
High: 74 °F
Sunny
Monday Night
Low: 51 °F
Mostly Clear
Tuesday
High: 81 °F
Sunny

Detailed Forecast

Tonight

Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Some of the storms could be severe and produce heavy rainfall. Low around 57. South wind 5 to 10 mph becoming northeast after midnight. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

Saturday

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 71. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 48. Northwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

Mostly sunny, with a high near 69. West wind 5 to 10 mph, with gusts as high as 20 mph.

Sunday Night

Partly cloudy, with a low around 47. West wind around 5 mph becoming calm.

Monday

Sunny, with a high near 74.

Monday Night

Mostly clear, with a low around 51.

Tuesday

Sunny, with a high near 81.

Tuesday Night

Mostly cloudy, with a low around 58.