• Twenty-five million people are under a heat advisory in the Northeast.
  • Record highs that have stood for more than 100 years could be broken.
  • Up to half a foot of snow was possible late Friday and early Saturday in downtown Denver.

Wild extremes of weather are the story across the U.S. heading into the weekend, as a May heat wave sends temperatures soaring in the East and a late-season snowstorm buries portions of the West. 

The early season heat wave will affect parts of the East on Friday and especially Saturday, with afternoon high temperatures expected to hit the 90s in many areas. “High temperatures are forecast to be between 20-30 degrees above average for much of the mid-Atlantic and Northeast on Saturday,” the National Weather Service said.

“Daily and monthly record highs could be challenged if not broken,” the Weather Service in Boston said.