National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Widespread Summer Heat; Enhanced Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, an enhanced risk of organized severe thunderstorms is possible from Iowa to Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

29°C

84°F

Humidity 59%
Wind Speed NE 11 km/h
Barometer 1019.3 mb (30.10 in)
Dewpoint 20°C (68°F)
Visibility 16 km
Heat Index31°C (87°F)
Last update 20 Aug 9:54 am EDT
Extended Forecast for

Philadelphia PA

Heat Advisory until August 21, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 21, 08:00pm

    NOW until
    8:00pm Wed

    Heat Advisory

  • Today

    Today: A chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 33. Northeast wind 8 to 10 km/h becoming southeast in the afternoon. Chance of precipitation is 30%. New rainfall amounts between 2.5 and 5 mm possible.

    Mostly Sunny
    then Chance
    T-storms

    High: 33 °C

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 3am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 24. South wind 5 to 10 km/h becoming calm after midnight. Chance of precipitation is 40%. New rainfall amounts between 2.5 and 5 mm possible.

    Chance
    T-storms and
    Patchy Fog

    Low: 24 °C

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 33. Heat index values as high as 39. South wind 5 to 14 km/h. Chance of precipitation is 50%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.

    Chance
    T-storms and
    Patchy Fog

    High: 33 °C

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 24. Southwest wind 10 to 14 km/h. Chance of precipitation is 50%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    Low: 24 °C

  • Thursday

    Thursday: A chance of showers and thunderstorms. Partly sunny, with a high near 33. West wind 8 to 13 km/h. Chance of precipitation is 40%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 33 °C

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Chance of precipitation is 50%. New rainfall amounts between 2.5 and 5 mm possible.

    Chance
    T-storms then
    Chance
    Showers

    Low: 21 °C

  • Friday

    Friday: A chance of showers before 9am. Mostly sunny, with a high near 27. Chance of precipitation is 40%.

    Chance
    Showers then
    Mostly Sunny

    High: 27 °C

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 17.

    Partly Cloudy

    Low: 17 °C

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 33. Northeast wind 8 to 10 km/h becoming southeast in the afternoon. Chance of precipitation is 30%. New rainfall amounts between 2.5 and 5 mm possible.
Tonight
A chance of showers and thunderstorms, mainly before 3am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 24. South wind 5 to 10 km/h becoming calm after midnight. Chance of precipitation is 40%. New rainfall amounts between 2.5 and 5 mm possible.
Wednesday
A chance of showers and thunderstorms. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 33. Heat index values as high as 39. South wind 5 to 14 km/h. Chance of precipitation is 50%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 24. Southwest wind 10 to 14 km/h. Chance of precipitation is 50%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 33. West wind 8 to 13 km/h. Chance of precipitation is 40%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Chance of precipitation is 50%. New rainfall amounts between 2.5 and 5 mm possible.
Friday
A chance of showers before 9am. Mostly sunny, with a high near 27. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 17.
Saturday
Sunny, with a high near 27.
Saturday Night
Mostly clear, with a low around 18.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Mostly sunny, with a high near 27.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Philadelphia PA
 39.96°N 75.16°W (Elev. 8 m)
Last Update:
9:40 am EDT Aug 20, 2019
Forecast Valid:
10am EDT Aug 20, 2019-6pm EDT Aug 26, 2019
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation