Summer Heat Continues; Severe Weather For Northeast

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, southern Plains, Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, severe thunderstorms are in the forecast for the Northeast into the northern Mid-Atlantic for damaging winds. Read More >

Hazardous Weather Conditions

En Español

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fog/Mist

74°F

23°C

Humidity	97%
Wind Speed	S 5 mph
Barometer	29.98 in (1014.4 mb)
Dewpoint	73°F (23°C)
Visibility	3.00 mi
Last update	21 Aug 6:53 am EDT

More Information:

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

Extended Forecast for

Princeton North NJ

Heat Advisory until August 21, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until August 21, 08:00pm

NOW until
8:00pm Wed

Heat Advisory
Today

Heavy Rain
and Patchy
Fog
High: 91 °F
Tonight

Heavy Rain
and Patchy
Fog
Low: 72 °F
Thursday

Chance
T-storms
High: 91 °F
Thursday
Night

Chance
T-storms then
Chance
Showers
Low: 67 °F
Friday

Chance
Showers then
Chance
T-storms
High: 80 °F
Friday
Night

Chance
T-storms then
Chance
Showers
Low: 60 °F
Saturday

Mostly Sunny
High: 82 °F
Saturday
Night

Partly Cloudy
Low: 60 °F

Detailed Forecast

Today

Showers and thunderstorms likely, mainly after 2pm. Some of the storms could produce gusty winds and heavy rain. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 91. Heat index values as high as 100. Light south wind becoming southwest 6 to 11 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely, mainly before 2am. Some of the storms could produce gusty winds and heavy rain. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 72. Southwest wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

A chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. West wind 6 to 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. North wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

A chance of showers and thunderstorms. Mostly cloudy, with a high near 80. North wind 5 to 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Mostly sunny, with a high near 82.

Saturday Night

Partly cloudy, with a low around 60.

Sunday

Mostly sunny, with a high near 80.

Sunday Night

A chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

Monday

A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.

Monday Night

A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.