PITTSBURGH (KDKA) — Oftentimes in weathercasts, you'll hear KDKA-TV's First Alert meteorologists mention the relative ...

Global warming and extreme heat events are having an increasing impact on human health. In corresponding studies, the ambient ...

Rain is desperately needed to quell smoke lingering from the Jennings Creek Wildfire, which broke out on Nov. 9 across the ...

Whether you associate humidity with illnesses or not, it's important to note that it’s easier for viruses to stay airborne longer when the indoor relative humidity is low. Data from the Asthma ...

The other, or "wet bulb" thermometer, measures relative humidity in the air and the results are normally lower than just the pure air temperature. For humans, this wet bulb reading is critically ...

You then compare this to a relative humidity chart to check the humidity level. PUPIL: The wet bulb temperature was two degrees Celsius. PUPIL: And the dry bulb was four degrees Celsius.