National Weather Service

News Headlines

NWS is seeking your input on NOAA Weather Radio. Please fill out the survey to help with our modernization efforts of weather radio!

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

97°F

36°C

Humidity	32%
Wind Speed	SW 17 mph
Barometer	30.01 in (1016.0 mb)
Dewpoint	62°F (17°C)
Visibility	10.00 mi
Heat Index	98°F (37°C)
Last update	19 May 4:54 pm EDT

More Information:

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

Extended Forecast for

Newtown Square PA

Heat Advisory May 19, 05:47pm until May 20, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory May 19, 05:47pm until May 20, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Tonight
Low: 72 °F
Slight Chance
T-storms then
Mostly Clear
Wednesday
High: 91 °F
Sunny then
Showers
Likely
Wednesday Night
Low: 55 °F
Showers
Likely
Thursday
High: 64 °F
Chance
Showers
Thursday Night
Low: 50 °F
Mostly Cloudy
Friday
High: 63 °F
Showers
Likely
Friday Night
Low: 48 °F
Showers
Saturday
High: 60 °F
Showers

Detailed Forecast

Tonight

A slight chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 72. Southwest wind 5 to 15 mph. Chance of precipitation is 20%.

Wednesday

A chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 91. West wind 5 to 15 mph. 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 likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and 11pm, then a chance of showers after 11pm. Mostly cloudy, with a low around 55. North wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 64. North wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night

Mostly cloudy, with a low around 50. Calm wind.

Friday

Showers likely, mainly after 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Showers. Low around 48. Chance of precipitation is 80%.

Saturday

Showers. High near 60. Chance of precipitation is 80%.

Saturday Night

Showers likely, mainly before 2am. Cloudy, with a low around 51. Chance of precipitation is 70%.

Sunday

A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.

Sunday Night

A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.

Memorial Day

A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 30%.