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Hot weather nears potential records in Philadelphia; Storm, rain, severe weather risk upgraded Sunday

Excessive heat warning in Philadelphia area ; Code Orange Air Quality Alert | Today's weather
Excessive heat warning in Philadelphia area ; Code Orange Air Quality Alert | Today's weather 03:51

PHILADELPHIA (CBS) -- Hot weather that overtook the Philadelphia region this week will be at its hottest over the weekend, with potential feels-like temperatures in the triple digits on Saturday and Sunday.

An excessive heat watch that was set to begin Saturday has been shifted to a heat advisory. The excessive heat watch for Sunday, June 23, has been upgraded to an excessive heat warning with a high dew point and humidity adding to the heat and creating potential feels-like temperatures as high as 106 degrees.


The real thermometer reading Sunday could peak at 99 degrees in Philadelphia and will be consistently in the mid-90s around the rest of the region including Reading, Pennsylvania; Wilmington, Delaware; and Millville and Vineland, New Jersey.

If Philadelphia's forecasted high temperature holds on Sunday, it would break the record of 97 degrees set on June 23, 1888.

CBS News Philadelphia

Code Orange air quality alert in Philadelphia

Philadelphia and the surrounding area are again under a Code Orange air quality alert for levels of ozone and particulate matter (PM2.5).

The air quality concerns in Philadelphia and the surrounding area today are due to hazy skies caused by the heat dome over the region that has yet to budge. With the stagnant, barely moving air, pollutants like ozone and PM2.5 can't filter out.

A Code Orange air quality alert means the air quality is unhealthy for sensitive groups like the elderly, children and people with breathing difficulties or lung conditions like asthma and COPD.

You can monitor air quality conditions at or on this webpage on

Live now meteorologist Tammie Souza with the peak of the #heatwave #Philadelphia extreme heat, warning, air, quality alert, and a threat of severe weather.

Posted by CBS Philadelphia on Saturday, June 22, 2024

Severe weather chances on Saturday, Sunday; risk upgraded for Lehigh Valley

CBS News Philadelphia

With all this heat and humidity there is plenty of potential in the atmosphere for a storm if one pops up. 

Any thunderstorms that spark this afternoon or evening could drop heavy rain and could also bring high winds.

Berks County, the Lehigh Valley and the Poconos, along with Upper Bucks and Upper Montgomery counties, are under a Level 1 or "marginal" risk of severe weather on Saturday.

The greater potential for severe weather is on Sunday, and the farthest northern parts of our region have been upgraded to a Level 2 or "slight" risk of severe weather. This includes areas like Allentown and Bethlehem, Pennsylvania and the Poconos.

Anything that develops Sunday would start around 2 p.m. or 3 p.m.

Points south of that area, including South Jersey, Philadelphia and the suburbs, are under a Level 1 or "marginal" risk of severe weather.

CBS News Philadelphia

We are looking at potential damaging winds, downpours that could create flash flooding, small hail and you cannot rule out the chance of an isolated tornado.

Here's your 7-day forecast:

CBS News Philadelphia

Saturday: NEXT Weather Alert for excessive heat. High 98

Sunday: NEXT Weather Alert for excessive heat. Chance of potential severe storms. High 99, Low 78

Monday: Cooler thanks to storms. High 90, Low 74

Tuesday: Clear skies. High 91, Low 68

Wednesday: Heating back up. High 97, Low 72

Thursday: High 89, Low 73

Friday: High 87, Low 67

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