Ninety-degree days are expected to return this week, but Boston will likely fall short of a heat wave, according to the National Weather Service.

Temperatures are expected to crest at 92 degrees Monday and Tuesday with a lower level of humidity compared to last weekend, bookended by days in the upper 80s, forecasters said.

“It’s still going to be hot and humid, but last weekend we actually had the headline of an excessive heat warning,’’ said Kim Buttrick, a weather service meteorologist.