Haven’t these chilly mornings and evenings felt nice? Don’t take the drizzle and gray for granted. That marine layer is expected to dissipate this weekend as a serious heat wave threatening to break high-temperature records lands in Los Angeles.

“There is a very real chance that this heat wave will be one for the record books,” says the National Weather Service. Temperatures will start rising steadily Friday. They’ll reach the 90-degree range on Saturday, creep into the mid-90s on Sunday, and peak Monday, when max temperatures in the valley will soar somewhere between 110 and 118 degrees, according the Weather Service.