Tens of millions of people across the Midwest and East endured dangerously hot temperatures as a sprawling June heat wave ...

Extreme humidity and heat will affect about 265 million people across the country this week. Maps show where and when to ...

A multiday heat wave is bringing high temperatures and health risks from the Midwest to the Northeast, prompting warnings and ...

Record-smashing daytime temperatures near 100 degrees are expected for millions from the Plains to the East Coast this week, ...

The heat wave is expected to continue into the week putting millions of Americans in the Midwest and Northeast under heat ...

Sunday will be hot and humid with hazy skies and highs in the upper 90s before dropping to the low 80s by nightfall.

When summertime heat and humidity surge to unseasonably high levels, it can have dramatic effects on humans, animals, ...