Summer’s just getting started, and already North America is sweltering.
The season’s first major heatwave is sweeping across the eastern half of the continent—and it’s not playing around.
More than 160 million people, from the US Midwest to Canada’s Atlantic coast, are under heat warnings this week.
And it’s not just the daytime highs that are brutal.
Nights are offering little relief, with temperatures in some cities hovering above 80°F (27°C)
Why Is This Heatwave Deadly?
It’s the combination of intense heat, stifling humidity, and how long it’s expected to last.
“Multiple days of oppressive heat could significantly raise health risks,” forecasters warn.
By Thursday, the Mid-Atlantic region will feel the worst of it, with cities like New York potentially matching record highs set back in 1966.

The National Weather Service isn’t sugar-coating it: know the signs of heat exhaustion, drink water like it’s your job.
Don’t forget to check on the elderly or anyone with health issues.
And with millions blasting their AC units, energy companies are practically begging people to conserve electricity to avoid blackouts.
It’s shaping up to be a scorcher—and summer has barely begun. Buckle up.