Heat indices could spike into the triple digits on June 22 and June 23 as both the temperature and humidity reach their ...

San Antonio faces a hot week with temperatures up to 103 degrees and intermittent chances of showers and thunderstorms.

Nevada and Arizona hit by potentially deadly heat wave, with temperatures in Furnace Creek in Death Valley expected to ...

The Chicago area will see several waves of rainstorms on Tuesday and Wednesday before a weekend of summer heat, according to ...

The arrival of the opening day of the Bartholomew County Fair on Friday will also be the beginning of summer’s first heat wave, with temps soaring into the 90s and high humidity in the forecast.

The National Hurricane Center is monitoring three tropical waves in the Atlantic basin, including one in the western Caribbean.

A high-pressure ridge is building over the Southwest, and forecasters say temperatures will soar past 110 degrees. The ...

It felt more like April than June on Sunday. But it could start feeling more like summer as soon as Wednesday.

The definition of a heatwave was first defined by A. T. Burrows in 1900, according to the American Meteorological Society. He ...