Heavy Rain in the Southern Appalachians; Heat Continues in the West; Monitoring Tropical Storm Erin

Heavy to excessive rain falling over the southern Appalachians may bring areas of flooding into Wednesday. Hot temperatures are in place through Wednesday across parts of the western U.S. and New England. Tropical Storm Erin is forecast to become a Hurricane by late this week as it moves westward across the central Atlantic Ocean. Monitor forecasts for any Puerto Rico or U.S. East Coast impacts. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Fair

76°F

24°C

Humidity	91%
Wind Speed	S 5 mph
Barometer	29.98 in (1015.0 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	76°F (24°C)
Last update	12 Aug 11:54 pm EDT

More Information:

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

Extended Forecast for

Philadelphia PA

Overnight
Low: 73 °F
Patchy Fog
Wednesday
High: 91 °F
Patchy Fog
then Showers
Likely
Wednesday Night
Low: 73 °F
Showers
Likely then
Chance
T-storms
Thursday
High: 89 °F
Chance
Showers then
Showers
Likely
Thursday Night
Low: 72 °F
Showers
Likely then
Slight Chance
Showers
Friday
High: 89 °F
Sunny then
Slight Chance
Showers
Friday Night
Low: 69 °F
Partly Cloudy
Saturday
High: 89 °F
Sunny
Saturday Night
Low: 70 °F
Mostly Clear

Detailed Forecast

Overnight

Patchy fog after 3am. Otherwise, partly cloudy, with a low around 73. South wind around 5 mph becoming calm.

Wednesday

A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers and thunderstorms likely before 5am, then a chance of showers. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening. 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 before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

A slight chance of showers after 2pm. Sunny, with a high near 89. Chance of precipitation is 20%.

Friday Night

Partly cloudy, with a low around 69.

Saturday

Sunny, with a high near 89.

Saturday Night

Mostly clear, with a low around 70.

Sunday

Sunny, with a high near 93.

Sunday Night

Partly cloudy, with a low around 72.