Extreme heat is considered the deadliest weather-related hazard in the U.S., according to the Fifth National Climate ...

Extreme heat is considered the deadliest weather-related hazard in the U.S., according to the Fifth National Climate Assessment. About 2,000 Americans die each year on average from extreme heat, ...

Prolonged wind events that unleash heavy rainfall and travel far distances sometimes qualify as derechos. Derechos can happen ...

Storms are expected to develop to the west in Nebraska and Minnesota, moving through northwest and north central Iowa.

But before that, the chance for severe weather along with dangerous heat and humidity were in the forecast Monday as part of ...

The Chicago area is in what is called a "ring of fire" weather pattern for the start of the work week -- and it could mean quick changes in conditions.

After a weekend of scattered storms and warm temperatures, the Chicago area faces a sweltering start to the week with a heat ...

Scattered storms and cloud cover may hold today’s heat in check, with cooler, more comfortable weather expected later this week just in time for Lollapalooza.

Read our pro tips for getting in, getting around and what to know in advance of the festival July 31 to Aug. 3 in Grant Park.

More than 185 million people across most of the United States are on alert for widespread, dangerous heat on Monday.

Forecasters warn of 100- to 105-degree heat index values through Tuesday, with potential storms offering limited relief.

At 4:07 p.m. EDT on Sunday, the National Weather Service released an updated severe thunderstorm warning in effect until 4:30 ...