Thursday started off brutally cold in Chicago, with wind chills dipping below zero, but what exactly does that mean and how is it calculated? A wind chill is the "measure of how cold the air feels on ...

Wind chill is how cold people and animals feel outside, even if the air temperature is slightly warmer. As wind increases, it ...

AUSTIN (KXAN) – With blistering heat this summer, you’ve likely heard a few people say “it’s not the head, it’s the humidity.” Turns out both things are true: it’s called the Heat Index. The heat ...