In California, Arizona and Nevada, many places in the triple digits flirted with or broke records.The wildfire is expected to grow in the coming days because of “not favorable” weather and terrain, according to a statement by the U.S. In Oregon, the Flat Fire ignited in the Rogue River-Siskiyou National Forest on Saturday evening, burning an estimated 3,000 acres in Oak Flat.Nearby, three other fires burned throughout the weekend in the Moreno Valley, Perris and Beaumont areas of the county, scorching over 790 acres. It’s one of a number of blazes being fueled by hot, dry conditions. Road closures remain in place and several dozen residents have been evacuated. Fueled by the heat, the Rabbit Fire in Riverside County, Calif., has grown to 7,600 acres and is 10 percent contained.“Dangerously hot conditions with heat index values up to 112 expected,” according to the National Weather Service. For the first time on record, an excessive-heat warning was issued for Miami on Sunday.In Texas, they included Del Rio (81), Austin (79), Dallas (83) and Laredo (81). In Florida, they included Orlando (77), Sarasota (80) and Key West (86). In the south-central and southeastern United States, not many locations set record daytime highs, but - because of exceptionally high humidity - numerous records were tied or set for the warmest low temperatures.By noon on Sunday, the National Weather Service said temperatures were several degrees higher than Saturday in most of Central California. In California, records were tied or broken at Paso Robles Airport (112), Montague (107), Mount Shasta (100), Barstow-Daggett Airport (116), Needles (109) and Bishop (109).Forecasters expect triple-digit highs throughout the week. Other records were posted in Kingman, which hit an all-time high of 114, Flagstaff (95), Prescott (103), the South Rim of the Grand Canyon (90) and Grand Canyon Airport (98). The city has strung together a record four consecutive nights that haven’t dipped below 92 degrees. Saturday was the city’s 17th straight day of reaching at least 110 degrees, closing in on the record streak of 18 days from 1974. Temperatures on Sunday decreased slightly due to high cloud cover. In Arizona, Phoenix tied or broke a calendar-day record for the third straight day, climbing to 118 degrees.Saturday had marked another day of smashed records far and wide across the Lower 48:.More than 100 million Americans are under alerts. They stretch continuously from Washington state along the Canadian border to the Mexican border in the southwestern United States, and additionally cover parts of the Gulf Coast region from Texas to South Florida. Heat advisories and excessive-heat watches and warnings have been hoisted in 14 states.

Past weather conditions by day