PITTSBURGH (KDKA) — Oftentimes in weathercasts, you'll hear KDKA-TV's First Alert meteorologists mention the relative humidity and dew point, but what are these two terms and what do they mean?

Dew point measures the air’s moisture content directly and impacts weather perception more accurately than relative humidity.

According to the National Weather Service, the dew point is the temperature the air needs to be cooled to (at constant pressure) to achieve a relative humidity of 100%. Once the air reaches its ...

Humidity will play peek-a-boo late in the week ahead and behind a cold front. Thursday, the cold front approaches Southeast ...

The dew point is the temperature the air needs to be cooled to in order to achieve a relative humidity (RH) of 100%. The higher the dew point rises, the greater the amount of moisture in the air.