Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Hazardous Weather Conditions

Heat Advisory until August 8, 08:00 PM EDT

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

79°F

26°C

Humidity	85%
Wind Speed	Calm
Barometer	30.07 in (1018.3 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	7 Aug 8:54 pm EDT

More Information:

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

Extended Forecast for

2 Miles SSE Marcus Hook PA

Heat Advisory August 7, 09:44pm until August 8, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 7, 09:44pm until August 8, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
Tonight
Low: 73 °F
Severe
Thunderstorms
then Chance
Showers and
Patchy Fog
Saturday
High: 90 °F
Patchy Fog
then Chance
T-storms
Saturday Night
Low: 74 °F
Slight Chance
T-storms then
Mostly Clear
Sunday
High: 90 °F
Mostly Sunny
Sunday Night
Low: 72 °F
Mostly Clear
Monday
High: 90 °F
Sunny
Monday Night
Low: 74 °F
Partly Cloudy
Tuesday
High: 88 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

Tonight

Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am. Some of the storms could be severe and produce heavy rainfall. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 73. Southwest wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A chance of showers and thunderstorms, mainly between 3pm and 5pm. Patchy fog before 9am. Otherwise, sunny, then becoming partly sunny during the afternoon, with a high near 90. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.

Saturday Night

A slight chance of showers and thunderstorms, mainly between 10pm and 11pm. Mostly cloudy, then gradually becoming clear, with a low around 74. Southwest wind around 5 mph. Chance of precipitation is 20%.

Sunday

Mostly sunny, with a high near 90. West wind around 5 mph.

Sunday Night

Mostly clear, with a low around 72. Calm wind.

Monday

Sunny, with a high near 90.

Monday Night

Partly cloudy, with a low around 74.

Tuesday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 40%.

Tuesday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.