Relative humidity is not a good way to tell if we have muggy air on the way. Here’s why. The key word in relative humidity is ...

Dew point is the temperature at which the air becomes “saturated” – in other words, it is holding all the water vapor it possibly can. If the temperature and the dew point equal each other, the water ...

Trey Fulbright is the newest meteorologist on the KDKA First Alert Weather Team. In addition to seeing his forecasts on air, he also does weather and climate reporting. Trey comes to KDKA from Des ...

(WHTM) — When temperatures rise, sometimes the air can feel dry and comfortable. But, sometimes it can feel downright tropical outside. This is caused by moisture in the air and it makes the air ...

The first major heat wave of summer has enveloped much of the midwestern and eastern U.S. in a brutal “dome” of record temperatures and high humidity. The dome phenomenon happens when weather ...