Late July heat will continue unabated for much of the country Thursday, though a few showers in portions of Florida, the Northeast and the Southwest might help ease the worst of it.

West: Parts of the Southwest and Four Corners will see some afternoon thunderstorms. Temperatures will soar into the 90s and 100s in much of the Far West, except for right along the coast.

Central U.S.: Blistering heat and humidity will roast the central and southern Plains on Thursday. Some showers and storms are also possible in the central Plains.

East: Heat and humidity will be the rule for most of the East Coast and Southeast. A cold front will trigger some thunderstorms in the afternoon in the Northeast and Mid-Atlantic. Florida's ongoing soggy pattern continues Thursday.

Weather history for July 30: In 1965, the temperature rose to 107 degrees in Portland, Ore., tying an all-time record high. In 1999, the dew point in Chicago rose to a record high of 83 degrees.