Thermometers in Oklahoma City on Wednesday were reading temperatures not seen for about four generations.
The high temperature of 112 degrees, reached at 3:39 p.m. local time, was the hottest temperature recorded in the city since August 11, 1936, when the all-time record high of 113 degrees was set.
OKC is in the midst of a stretch of 15 straight 100-degree days, challenging not only electrical grids but water pressure in the metropolitan area.
Watering bans are in effect, and residents have been asked to conserve electricity at peak times.
The veil of night offered little relief from the heat.
Oklahoma City tied their all-time record high minimum temperature of 83 degrees Thursday morning. Although a 24-hour record is dependent on Thursday evening's temperature leading up to Midnight as well.
Other parts of the Sooner State failed to even drop below 90 degrees before sunrise. At 5:00 a.m., Tulsa was sizzling at a temperature of 91 degrees, while it was still 92 degrees in Guthrie.
Never in recorded history has there been a night where temperatures stayed at or above 90 degrees in Tulsa.
Though the all-time record wasn't reached on Wednesday, Oklahoma City has a shot at it again today with temperatures expected to top out around 112 degrees this afternoon.
Temperatures at or above 100 degrees are forecast each day for the city through at least early next week.
After a mild start to February, cooler air will arrive in Germany at midweek, sending temperatures closer to normal.
Cold air and flurries are in store for the New Hampshire primary on Tuesday but should not significantly impact voter turnout.
Snow and slippery travel will arrive in the mid-Atlantic states prior to the middle of the week.
Waves of arctic air invading the eastern half of the United States this week will culminate with the coldest weather of the season so far for some areas by the Valentine's Day weekend.
Chilly air will visit New Orleans this year for the annual Mardi Gras celebrations and linger over the city until later in the week.
Denver Broncos fans celebrating the Super Bowl win will see ideal conditions for Tuesday's parade and pep rally.
New England (1741)
Greatest snow of Hard Winter 1740/1741: 3ft near Hartford.
Washington, D.C. (1870)
President Grant signed a measure establishing a Federal meteorological service; later assigned to Signal Corps, U.S. Army. Riverside Ranger Station 1933 -66 deg., U.S. record for Feb. (48 states). Yellowstone Park
Stillwater Reservoir, NY (1934)
State record low temperature -52 degrees.