Nashville’s heat is moving from uncomfortable to hazardous, with highs near 101 and a Heat Advisory through Friday. Slight storm chances finally return this weekend.

Miami gets a clear start Wednesday before afternoon storms and dangerous heat buildup. A wetter pattern is expected through Labor Day.

A heat advisory covers Detroit Wednesday as temperatures approach 94 and storms build into the afternoon. Cooler, sunnier weather arrives by Sunday.

D.C. faces thunderstorms through Friday, including a Thursday heat index near 107, before a cooler Labor Day weekend arrives.

Cleveland could feel like 102 degrees Wednesday before strong thunderstorms arrive in waves. Cooler, drier weather finally takes over this weekend.

Clouds and fog give Philadelphia a brief break Wednesday before storms and a Thursday heat advisory. The Labor Day weekend looks sunny, cooler and less humid.

Atlanta's heat ramps up to 97 degrees Wednesday, with triple-digit heat indexes before storm chances return for the weekend.

Columbus faces another dangerous heat day Wednesday, with a 95-degree high and heat indexes near 100. Storm chances rise Thursday before a cooler weekend arrives.

Fog will quickly give way to dangerous heat in Cincinnati, with a high near 98 Wednesday. Storm chances return late week before a cooler Sunday forecast.

Pittsburgh’s heat index could hit 102 Wednesday and Thursday as storm chances build. Cooler, calmer weather is expected by the weekend.

A clear Orlando morning gives way to thunderstorms, heavy rain and heat indexes near 102 degrees. The stormy pattern is expected to continue through Labor Day.

Baltimore faces muggy air, afternoon storms and another round of heat before a cooler, sunnier Labor Day weekend arrives.

Honolulu starts warm and mostly clear Tuesday, but stronger winds and passing showers are ahead through Friday as Hurricane Lowell moves south of Hawaii.