GREENSBORO, N.C. — Two common weather terms you'll hear many times in the warmer part of the year are "dew point" and "relative humidity". While both relate to moisture in the air and the ...

Over the next two weeks, extreme levels of humidity are forecast to hit around 40 states, with the first wave of very muggy weather building in central and eastern states through Thursday.

For millions of people across the Midwest, Great Lakes, Northeast and parts of the Mid-Atlantic, there will be a brief break from sticky air into early next week.

Dew point is an overall better measurement of how humid and dry the air really feels. From the examples before, it is possible to have a high relative humidity but with low dewpoints and higher ...