Las Vegas will climb to 111 degrees Wednesday as an Extreme Heat Warning remains in effect through Friday evening. Warm overnight temperatures will offer little relief.

Sacramento is headed for 98-degree heat Wednesday and Thursday, with dry air raising fire-weather concerns before a cooler Friday.

San Diego starts clear and 72 degrees Wednesday, but a Heat Advisory and beach hazards statement will shape the next two days.

San Jose gets one more warm, sunny afternoon before a cooler pattern arrives. A slight chance of light rain and foggy mornings are also ahead.

Downtown Los Angeles could hit 99°F Wednesday as extreme heat and elevated ozone persist through Friday. A cooler weekend is finally on the way.

Denver gets a hot, stormy Wednesday before temperatures climb into the mid-90s by Friday and Saturday.

Salt Lake City will hit 97 degrees Thursday before weekend thunderstorms bring a sharp cooldown.

St. Louis climbs to 92 Wednesday, then gets a sunny two-day cooldown before temperatures surge back into the mid-90s next week.

A new underwater valve lets Prospect Park staff drain the lake in under 36 hours before storms, saving 800,000 gallons of tap water daily.

Chicago faces scattered storms Wednesday, with the strongest activity possible from afternoon into early evening. Sunny, cooler weather arrives Thursday.

Nashville could hit 94 degrees Wednesday before storm chances increase Thursday. A sunnier, hotter stretch follows into next week.

San Antonio faces a 102-degree Wednesday under a Heat Advisory. Storm chances return Thursday, but the weekend heat is already waiting.

Austin is under a Heat Advisory Wednesday as temperatures climb to 104 degrees. A limited storm chance arrives Thursday, but the triple-digit heat sticks around.