Folks, you'll be amazed by how fast it warms up later this week. From the mid-Atlantic to New England, Thursday will remain cool, then almost magically it will be in the 70s Friday. It won't stop there. This weekend will feature 80s from the Ohio Valley eastward. Even the valleys tucked between the Appalachians will experience temperatures above 80 degrees Saturday afternoon and again on Sunday.

The change will come so fast that many might feel that it's too warm. That happens when one doesn't have time to acclimate to the changing conditions. The downside to the upcoming warm weather is that many will get a sunburn, and some will suffer dehydration.

Story by AccuWeather.com Expert Senior Meteorologist John Kocet.