There are multiple ways to describe how wet the air is (yes, pretty much all air is wet). What I mean by that is there are water molecules tucked in between the gases like nitrogen and oxygen that ...

Paris Alston: This is GBH’s Morning Edition. We are in another heat wave and while hot temperatures are expected in the summer, the humidity can make it feel like it’s dragging. But what is it about ...

Meteorologist Ray Petelin joined the KDKA Weather Team in October 2018, but is no stranger to the weather in Pittsburgh and Western Pennsylvania. He has been forecasting in Pittsburgh since 2011 and ...

I love getting your questions, and I got a great one from Steve! He asks: It's pouring rain, but the outdoor humidity gauge says 74% relative humidity. How's that possible? Shouldn't it be 100%? This ...

In reaction to the threat of COVID-19 and other viral, airborne respiratory infections, experts have recommended increased ventilation in hospitals, nursing homes, schools, and other public buildings.