Life-threatening heat wave in the Midwest and Northeast to kick off official start of summer. High temperatures expected to range from the mid-90s to the low-100s.

Patterns of above-average heat and humidity that developed during June are showing no signs of slowing down across the United States. Temperatures will surge well into the 90s across the Northeast ...

High temperatures across the Plains, Midwest, mid-Atlantic and Northeast are expected to hit at least 15 degrees above normal ...

Tens of millions across the Midwest and Northeast sweltered under a brutal heatwave Tuesday, as actual temperatures — not just the "feels like" — soared past 100 degrees. At least one heat ...

NEW YORK – A massive heat dome that sparked the first major heat wave of the summer brought record-breaking temperatures to cities from the Midwest to the Northeast this week, but some much-needed ...

ABC News(NEW YORK) -- Heat is the No. 1 weather-related killer -- and it's heading to the most densely populated part of America for a prolonged period.A heat wave forecast to envelop the Midwest ...

ABC News - PHOTO: Temperatures are expected to soar into the triple digits as a heatwave in the Midwest and Northeast is forecast to kick off the official start of summer.

While they may not have the sizzle of triple-digit high temperatures, Philadelphia and other cities in the Northeast and Midwest have been setting under-the-radar records this week even before the sun ...

Brace for the ‘heat dome’. Temperatures across the Midwest and East Coast will hit dangerous levels this coming week. Millions of Americans are expected to experience temperatures in the 100s ...

Millions of Americans are facing hot, humid temperatures at the start of summer. Across the Midwest and Northeast, over 40 million Americans are under extreme heat watches on June 20. Some states ...

By Monday, record-breaking daily high temperatures are expected to be widespread across the Mid-Atlantic and Northeast, with highs from the mid-90s to the low-100s.