According to the BBC, State officials revealed that the air quality index is expected to top 100, with some areas pushing 135 ...

Cook County is under a heat watch through Thursday evening. Temperatures could feel like 105-110 degrees Wednesday.

Chicago faces an extreme heat watch with temperatures expected to reach mid-90s and heat indexes up to 115 degrees.

The air quality index (AQI) is predicted to be above 100 in much of New York state on Saturday, and could reach 135. Alerts ...

Hundreds of documents show how researchers failed to notify officials in California about a test of technology to block the ...

Hundreds of documents show how researchers failed to notify officials in California about a test of technology to block the ...

A bill authored by State Sen. Rick Niemeyer (R-Lowell) that ensures Indiana’s air quality is meeting certain guidelines established by the federal Clean Air Act ...

Wisconsin Lt. Gov. Sara Rodriguez is the first Democrat to officially enter the race for governor. She launched her candidacy on Friday, the day after Gov. Tony Evers decided not ...

Sauna-like conditions on Friday are threatening to break records in major Northeast cities during summer’s hottest month after dangerous heat peaked Thursday in the central United States.

It's been a brutally hot summer throughout the U.S., and it's even worse in many urban pockets. Trees can help.

Pollen and Air Quality forecast for Chicago, IL with air quality index, pollutants, pollen count and pollution map from Weather Underground.