Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

79°F

26°C

Humidity 56%
Wind Speed E 13 mph
Barometer 30.10 in (1019.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 4 Aug 9:54 am EDT
Extended Forecast for

Chester Heights PA

  • Today

    Today: Mostly sunny, with a high near 84. Northeast wind around 5 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. Southeast wind around 5 mph becoming calm.

    Low: 67 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 2pm, then showers likely and possibly a thunderstorm after 4pm.  Mostly cloudy, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 72. South wind around 5 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 88. Southwest wind 5 to 10 mph.  Chance of precipitation is 20%.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, mainly between 8pm and 2am.  Partly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    Showers

  • Friday

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

    High: 89 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 87. Chance of precipitation is 40%.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 84. Northeast wind around 5 mph.
Tonight
Mostly cloudy, with a low around 67. Southeast wind around 5 mph becoming calm.
Wednesday
Showers and thunderstorms likely, mainly before 2pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 72. South wind around 5 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 slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
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 40%.
Saturday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Chester Heights PA
 39.88°N 75.46°W (Elev. 220 ft)
4:08 am EDT Aug 4, 2026
10am EDT Aug 4, 2026-6pm EDT Aug 10, 2026
 
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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