TULSA, Oklahoma -- It's been dangerously hot over the weekend and it's only getting worse.

At 101 degrees, Sunday is the hottest day of the year so far--and Monday it's going to be just as hot, if not hotter.

News On 6 Meteorologist Dick Faurot said a frontal boundary will be moving across the state on Monday.

"It is the SW winds ahead of that boundary that will contribute to what should be a record high temperature on Monday," Faurot said.

The National Weather Service has issued heat warnings for the following counties:
Creek County
Okfuskee County
Okmulgee County
Osage County
Pawnee County
Tulsa County
Washington County

The excessive heat warning remains in effect until 10 p.m. Monday.