Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Fog/Mist

70°F

21°C

Humidity 90%
Wind Speed Calm
Barometer 30.04 in (1017.3 mb)
Dewpoint 67°F (19°C)
Visibility 6.00 mi
Last update 29 Jun 5:54 am EDT
Extended Forecast for

Philadelphia PA

Extreme Heat Watch July 1, 12:00pm until July 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch
  • Today

    Today: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 88. Calm wind becoming northeast around 5 mph.

    High: 88 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 67. South wind around 5 mph becoming calm  in the evening.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 2am.  Mostly clear, with a low around 71. South wind 5 to 10 mph.  Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny and hot, with a high near 97. Southwest wind around 10 mph.

    High: 97 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 80.

    Low: 80 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 103.

    High: 103 °F

    Hot

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming northeast around 5 mph.
Tonight
Mostly clear, with a low around 67. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the morning.
Tuesday Night
A slight chance of showers and thunderstorms before 2am. Mostly clear, with a low around 71. South wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday
Sunny and hot, with a high near 97. Southwest wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 79.
Thursday
Sunny and hot, with a high near 102.
Thursday Night
Clear, with a low around 80.
Friday
Sunny and hot, with a high near 103.
Friday Night
A chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 80. Chance of precipitation is 30%.
Independence Day
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 99. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Chance of precipitation is 50%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 95. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Philadelphia PA
 39.96°N 75.16°W (Elev. 26 ft)
4:07 am EDT Jun 29, 2026
6am EDT Jun 29, 2026-6pm EDT Jul 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database