Charlotte faces a Friday Heat Advisory with a high near 97 and heat index values up to 108. More triple-digit-feeling heat and storm chances are ahead.

Sacramento gets a cool Thursday and Friday before temperatures climb into the 90s this weekend. A Sierra fire-weather warning adds a serious caution for mountain travelers.

Afternoon thunderstorms could bring gusty winds, lightning and localized flooding Thursday before Las Vegas heats back up to 107°F next week.

Honolulu gets sunshine Thursday before stronger winds, high surf and possible tropical storm conditions arrive this weekend.

St. Louis faces dangerous heat through Saturday, with highs reaching 101 degrees and heat indexes above 110. A cooler, stormier pattern arrives Monday.

Light rain and a few weak thunderstorms will taper Thursday before more showers arrive Friday night and Saturday. Sunshine returns Sunday.

Dredging near the new Pontiac Preserve will target decades-old toxic muck as the Maumee watershed inches toward full recovery.

Lava fountains hit 100 feet as Halemaumau's north vent kicked off Wednesday afternoon, marking the eruption's 53rd episode since December 2024.

An Environment America study tested 202 Missouri sites and found nearly all flunked at least once. Sewage overflows are a top culprit, experts say.

Katie Schlick will lead the state's fight against deadly heat, funded by The Boston Foundation and modeled on Arizona's year-old program.

A cloudy San Francisco morning gives way to afternoon sun and gusty southwest winds Thursday. Cooler conditions continue through Friday before a mild weekend rebound.

A cloudy, cooler Thursday gives downtown Los Angeles a brief break before temperatures climb into the upper 80s next week.

San Jose will see a sunny, breezy Thursday before patchy smoke and a cooler overnight. Foggy mornings return this weekend as temperatures slowly climb.