Severe Weather in the Northeast; Intense Heat in the Mid-Atlantic and Portions of the West

Severe thunderstorms and heavy rainfall are likely across portions of the Northeast. An intense heat wave will continue across the Mid-Atlantic, where record high temperatures are likely. In the West, triple-digit high temperatures are possible in central and southern California, Arizona, and Utah. Monsoon-like conditions may produce isolated flash flooding in the Four Corners region. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Thunderstorm

76°F

24°C

Humidity	91%
Wind Speed	SW 5 mph
Barometer	29.64 in (1003.6 mb)
Dewpoint	73°F (23°C)
Visibility	7.00 mi
Heat Index	76°F (24°C)
Last update	23 Jun 7:54 pm EDT

More Information:

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

Extended Forecast for

Williamstown NJ

Severe T-storm Watch June 23, 08:37pm until June 23, 10:00pm

Click here for hazard details and duration

...

Severe T-storm Watch June 23, 08:37pm until June 23, 10:00pm
NOW until 10:00pm Sun
Severe T-storm Watch
Tonight
Low: 74 °F
Severe
Thunderstorms
Monday
High: 84 °F
Mostly Sunny
Monday Night
Low: 65 °F
Mostly Clear
Tuesday
High: 92 °F
Sunny
Tuesday Night
Low: 71 °F
Partly Cloudy
Wednesday
High: 96 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 71 °F
T-storms
Likely
Thursday
High: 89 °F
Chance
T-storms then
Chance
Showers

Detailed Forecast

Tonight

Showers and thunderstorms likely, mainly before 1am. Some of the storms could be severe. Mostly cloudy, with a low around 74. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday

Mostly sunny, with a high near 84. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

Monday Night

Mostly clear, with a low around 65. Northwest wind 10 to 15 mph.

Tuesday

Sunny, with a high near 92. Northwest wind 5 to 10 mph.

Tuesday Night

Partly cloudy, with a low around 71. South wind 5 to 10 mph.

Wednesday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers and thunderstorms likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 70%.

Thursday

A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Partly sunny, with a high near 89. Chance of precipitation is 30%.

Thursday Night

Mostly clear, with a low around 64.

Friday

Sunny, with a high near 86.

Friday Night

Partly cloudy, with a low around 64.

Saturday

Mostly sunny, with a high near 88.

Saturday Night

Partly cloudy, with a low around 71.

Sunday

A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 40%.