Philadelphia gets a sunny, dry Tuesday with an afternoon high near 84 before a warmer Wednesday and Thursday storm chances.

Cincinnati starts foggy Tuesday before temperatures soar into the 90s. Heavy rain and thunderstorms arrive Wednesday night and linger into Thursday.

Baltimore warms into the upper 80s Tuesday and Wednesday before Thursday afternoon showers and thunderstorms change the pattern.

Miami starts Tuesday clear and calm before afternoon storms move in. The heat index could hit 99 degrees, with lightning and localized flooding possible.

Houston will hit 93 Tuesday with a heat index near 105 before storm chances rise sharply Wednesday and continue through the weekend.

Boston gets a mostly sunny Tuesday and Wednesday before late-week heat, gusty winds and scattered showers arrive.

Chicago gets one more warm, mostly sunny day Tuesday before showers and thunderstorms move in Wednesday. A cooler Thursday follows, but summerlike warmth returns by the weekend.

Storms and heavy rain could slow the Tuesday morning commute across Minneapolis before sunny, breezy weather arrives Wednesday.

San Antonio will hit 100 degrees Tuesday, with heat index values near 108 and little rain expected. The hot, mostly dry pattern continues through the weekend.

Dallas is in for another punishing heat day Tuesday, with a high near 102 and heat index values up to 108. Triple-digit temperatures are expected to continue through Saturday.

Nashville is headed for another hot stretch, with a 95-degree high Wednesday before storm chances increase Thursday and linger into the weekend.

Knoxville gets two more sunny days near 90 before showers and thunderstorms return Thursday. The weekend stays hot with more storm chances.

Greenville gets several sunny, hot days before storm chances return Friday and linger through the weekend.