Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Partly Cloudy

77°F

25°C

Humidity	58%
Wind Speed	NE 13 mph
Barometer	29.98 in (1015.2 mb)
Dewpoint	61°F (16°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	3 Aug 11:54 pm EDT

More Information:

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

Extended Forecast for

Merion Station PA

Overnight
Low: 66 °F
Mostly Cloudy
Tuesday
High: 86 °F
Mostly Sunny
Tuesday Night
Low: 68 °F
Mostly Cloudy
Wednesday
High: 86 °F
Chance
Showers
Wednesday Night
Low: 73 °F
Chance
Showers
Thursday
High: 89 °F
Mostly Sunny
then Chance
T-storms
Thursday Night
Low: 73 °F
Chance
T-storms
Friday
High: 89 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 72 °F
Chance
T-storms

Detailed Forecast

Overnight

Mostly cloudy, with a low around 66. North wind around 5 mph.

Tuesday

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

Tuesday Night

Mostly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm in the evening.

Wednesday

A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 86. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 73. South wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. 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 before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 50%.

Friday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 40%.

Friday Night

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

Saturday

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

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.

Sunday

A chance of showers. Mostly sunny, with a high near 88. Chance of precipitation is 30%.