It was just a week ago that Oklahoma enjoyed fall-like weather with a daytime high in Ardmore of only 66 degrees on July 17, and that unseasonable day came after two consecutive nights of record lows of 59 and 60.

But summer searing temperatures have returned with a vengeance.

Temperatures for the weekend are forecast to flirt with 100 degrees, with heat indices through Sunday as high as 105 degrees.

A moderate front moves through on Monday, however, cooling the region into the low 90s.