Seattle’s clouds should clear Wednesday before a warm, mostly sunny stretch peaks Friday near 82 degrees. A small rain chance returns Monday and Tuesday.

St. Louis could hit 97°F Wednesday with a heat index near 110°F, while isolated thunderstorms may bring gusty winds. Dangerous heat continues through Thursday.

A microscopic Gulf alga rarely seen this far north has state officials warning Jacksonville residents to watch for burning eyes and dead fish.

El Paso gets a slight break from triple-digit heat Wednesday, but storm chances build through the weekend. Mountain areas face the greatest risk of localized flooding.

Salt Lake City could see afternoon thunderstorms Wednesday before a much wetter Thursday. Drier, warmer weather returns for the weekend.

Chicago starts Wednesday with fog and clouds before a fast-moving round of thunderstorms arrives. Damaging winds and heavy rain are possible through the afternoon.

New Orleans faces a 93-degree Wednesday with a chance of afternoon storms, followed by a hotter and mostly dry stretch into next week.

Austin is facing a long run of triple-digit heat, with highs near 100 to 102 degrees through next week.

Milwaukee’s foggy Wednesday morning should clear into a partly sunny afternoon, but storms return this weekend.

Oklahoma City faces a 102°F Wednesday, a hotter Thursday and a Heat Advisory through Friday. Triple-digit afternoons are expected to continue into next week.

Memphis faces a Heat Advisory through Friday as the heat index reaches 110°F and weekend highs climb above 100°F.

Dallas is headed into a long run of triple-digit heat, with Wednesday’s high reaching 102 and a heat index near 106. Dry, breezy conditions are also raising wildfire concerns.

San Antonio is headed for another 101-degree day Wednesday, with heat index values reaching 105 and little rain in sight.