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

Extreme Heat and Excessive Rainfall This Week

A significant heat wave continues for the Rockies, Northern Plains, and Great Lakes into the Mid-Atlantic, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. Excessive rainfall my bring life-threatening and locally catastrophic flash and urban flooding across portions of southwestern Texas through early Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Partly Cloudy

81°F

27°C

Humidity 74%
Wind Speed SW 12 mph
Barometer 29.96 in (1014.4 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 14 Jul 11:54 pm EDT
Extended Forecast for

Collingdale PA

Extreme Heat Warning July 15, 10:00am until July 15, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Overnight

    Overnight: Mostly clear, with a low around 76. Southwest wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101. Heat index values as high as 105. West wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 77. West wind around 5 mph becoming calm after midnight.

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 95. Light northwest wind becoming west 5 to 10 mph in the afternoon.

    High: 95 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. North wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am. Partly cloudy, with a low around 72. Chance of precipitation is 40%.

    Low: 72 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 8am. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 76. Southwest wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 101. Heat index values as high as 105. West wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 77. West wind around 5 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 95. Light northwest wind becoming west 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 75. North wind around 5 mph.
Friday
Mostly sunny, with a high near 93.
Friday Night
A chance of showers after 2am. Partly cloudy, with a low around 72. Chance of precipitation is 40%.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 8am. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 90.
Monday Night
A chance of showers. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 90. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Collingdale PA
 39.9°N 75.28°W (Elev. 62 ft)
Last Update:
5:58 pm EDT Jul 14, 2026
Forecast Valid:
12am EDT Jul 15, 2026-6pm EDT Jul 21, 2026
 
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