ARDMORE, Okla. (KTEN) — Thousands of southern Oklahomans were still without power on Monday evening as temperatures soared.

High winds caused a peak of more than 130,000 OG&E customers to lose electricity over the weekend. Ardmore was o e of the hardest-hit communities.

Utility workers continued efforts Monday to switch the lights back on.

"Crews are still out assessing damage," said OG&E spokesperson Carson Cunningham. "We have roughly 4,000 personnel with boots on the ground. A lot of the challenges with this storm in particular is that we are assessing damage to 1,600 miles of overhead power lines."

OG&E estimated that power would be fully restored to Carter and Johnston County customers by 10 p.m. Thursday.

The utility offers cooling zones throughout its service area. In Ardmore, the public library is available during its regular operating hours, 9 a.m. to 5 p.m.