Just as Thanksgiving cooks are preparing to roast their turkeys and bake their pies, temperatures across Southern California are expected to heat up this week, with some areas seeing holiday highs in the 90s.

Record high temperatures are likely to be set Wednesday and Thursday, according to the National Weather Service.

A high-pressure system is expected to linger over the region and will be its strongest just in time for Thanksgiving, with low humidity creating a dry heat, said Stephen Harrison, a meteorologist with the weather service in San Diego.

At the same time Santa Ana winds are expected to die down, causing the heat to linger from the coast to the inland regions.

“This is abnormally warm for Thanksgiving, definitely,” Harrison said.

At Los Angeles International Airport, Monday is expected to see a high of 75 degrees, slightly increasing each day with 83-degree heat Tuesday, a high of 86 degrees Wednesday and 84 degrees Thursday.

In Long Beach, Monday will see a high of 74 degrees, then a 81-degree high Tuesday, and 86 degrees Wednesday. Thanksgiving day will see a high of 84 degrees.

Highs will stay relatively cool at the coast in Newport Beach with a high of 68 Monday, then a slight increase with a high of 73 degrees Tuesday, Wednesday will see a high of 75 degrees and 77 degrees Thursday.

Highs will reach the 90s in Fullerton this week, with highs reaching 77 degrees Monday, then Tuesday will see a 10-degree jump with highs at 87 degrees, 92 degrees Wednesday and 90 degrees Thursday.

Riverside and San Bernardino will also see highs in the 90s, with Monday reaching 80 degrees in both cities and 90 degrees Tuesday. Wednesday will reach the low 90s in both cities and linger in the low 90s on Thanksgiving day.

But on Friday temperatures are expected to drop across the region when the high-pressure system begins to weaken.

Temperatures are expected to drop about five degrees Friday, then another five Saturday and drop slightly Sunday. The next chance of rain in the region will be the Tuesday after Thanksgiving.