Excessive heat warnings are in effect for tens of millions, stretching from the Mississippi River Valley to the U.S.-Canadian border.
Heat indexes are between 105 and 115 as temperatures near 100.
The achievement soars in the rarest of air along with the founding of America itself.
If anything, it trends somewhat hotter Saturday and Sunday.
Nighttime temperatures are rising far faster than daytime temperatures.
High temperatures are expected to near 100 degrees and feel like 105 to 115 degrees factoring in the humidity.
A dangerous combination of hot and extraordinarily humid air is blanketing two-thirds of the U.S. The peak of this event is likely to occur on Saturday, but records could fall through the weekend.
The high heat would be rough on its own, but the oppressive humidity makes it so much worse.
A multi-day wildfire in western Greenland is part of a sharp uptick in Arctic blazes, according to scientists, raising concerns about the ramifications of climate change in the Far North.
Today's slightly cooler conditions still meant more 90s. We make a big jump upward to end the work week.
Heat index values are forecast to be near 115 degrees.
Heat advisories and warnings affect 154 million Americans as temperatures are forecast to reach at least 95 degrees for over half the population. The humidity will make it feel even hotter.
If you’re going to the game in Cincinnati, expect partly cloudy and muggy conditions with temperatures slowly falling through the 80s.
Heat index values are forecast to hit 110 to 115 Friday through Sunday.
As the lightning intercepts the tree, there’s a blinding flash of yellow light, a deafening crash of thunder and its bark explodes.
Earlier storms have departed. We get a one-day breather of sorts tomorrow.
The air temperature has a good chance to hit 100 for the first time since 2016.
These exceptional rainstorms appear to be part of a trend toward more extreme events connected to climate change.
A dangerous heat wave is taking shape across much of the Lower 48 states, with a combination of hot temperatures and extremely high humidity levels posing a public health threat.
It feels like 100 to 105 this afternoon before any storms develop, and a heat advisory is in effect.
Heat index values could hit 105 degrees.