Monday – already expected to see high heat and humidity combine for a heat index that could reach 110 – will also feature ...

The Pennsylvania Department of Environmental Protection has issued a Code Orange Air Quality Alert for the Susquehanna Valley.

The National Weather Service reported an air quality alert at 3:45 p.m. on Sunday in effect until Tuesday at midnight for ...

The National Weather Service reported an air quality alert at 3:45 p.m. on Sunday in effect until Tuesday at midnight for ...

On Monday, the region is also under an extreme heat warning from the National Weather Service as a large area of high ...

The Pennsylvania Department of Environmental Protection has declared a Code Orange Air Quality Action Day for ozone for Monday in Lehigh and Northampton counties. On Monday a large area of high ...

The National Weather Service reported an air quality alert at 4:36 p.m. on Sunday in effect until Monday at 8 p.m. for ...

Pennsylvania faces unhealthy ozone levels due to stagnant air and high temps. Sensitive groups should limit outdoor ...

At 4:30 p.m. on Sunday, the National Weather Service reported an air quality alert in effect until Monday at 9 p.m. for ...

A Code Orange Air Quality Action Day has been issued for parts of the Pittsburgh area on Thursday.

A Code Orange Air Quality alert will be in effect for Philly, Bucks, Montgomery, Chester and Delaware Counties2, 2025.