Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

An extreme heat warning was issued by the National Weather Service in Mount Holly at 11:03 a.m. on Monday, June 23.

Keeping cool during the heatwave ...

Ontario is blanketed by extreme heat and humidity right now as the first heat wave of the summer has taken hold. Environment ...

The National Weather Service currently has an extreme heat warning in effect from today until 8 p.m. on Wednesday.

The National Weather Service has issued an extreme heat warning for most of Southern New England, with the temperature expected to reach 94 degrees in Providence Monday, June 23. "Heat ...

The first full week of summer brought a heat wave to Northeastern Pennsylvania, with a heat index of more than 100 degrees, ...

A heat wave is blanketing Delaware today and will last several days. When is relief on the way? Here's the latest forecast.

As temperatures climbed into the 90s on Monday, and the National Weather Service issued a heat advisory or extreme heat warning through tomorrow, Bennington County residents found ways to stay ...

With temperatures expected to soar dangerously high today, Tuesday and Wednesday, the manager of Tamaqua’s community pool is ...

A heat warning is issued when Environment and Climate Change Canada forecasts two consecutive days with a maximum daily ...

An Excessive Heat Warning is in effect for Metro Richmond and much of central Virginia from 10 a.m. Monday until 8 p.m. Wednesday. The heat will intensify on Monday, with afternoon highs near the ...