Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

72°F

22°C

Humidity	57%
Wind Speed	SE 5 mph
Barometer	30.17 in (1021.6 mb)
Dewpoint	56°F (13°C)
Visibility	10.00 mi
Last update	24 Jul 10:54 pm EDT

More Information:

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

Extended Forecast for

Merion Station PA

Tonight
Low: 63 °F
Mostly Cloudy
Saturday
High: 83 °F
Sunny
Saturday Night
Low: 61 °F
Mostly Clear
Sunday
High: 84 °F
Sunny
Sunday Night
Low: 66 °F
Partly Cloudy
Monday
High: 86 °F
Mostly Sunny
then Chance
T-storms
Monday Night
Low: 68 °F
Showers
Likely
Tuesday
High: 85 °F
Chance
Showers then
Showers
Tuesday Night
Low: 67 °F
Showers then
Chance
Showers

Detailed Forecast

Tonight

Mostly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm.

Saturday

Sunny, with a high near 83. East wind 5 to 10 mph.

Saturday Night

Mostly clear, with a low around 61. East wind 5 to 10 mph becoming north after midnight.

Sunday

Sunny, with a high near 84. North wind 5 to 10 mph becoming east in the afternoon.

Sunday Night

Partly cloudy, with a low around 66. South wind around 5 mph.

Monday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday Night

A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.

Tuesday

A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 85. Chance of precipitation is 80%.

Tuesday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 67. Chance of precipitation is 80%.

Wednesday

A chance of showers after 8am. Partly sunny, with a high near 84. Chance of precipitation is 40%.

Wednesday Night

Partly cloudy, with a low around 66.

Thursday

Mostly sunny, with a high near 85.

Thursday Night

Partly cloudy, with a low around 66.