SACRAMENTO (CBS13) – A few sizzling spring days are ahead, but some drastic changes are coming at the end of the week.

Temperatures are expected to hit the low 90s in the valley through Thursday.

Wednesday is expected to be the hottest day, with high temperatures in the valley expected to peak in low mid-90s. Even the Bay Area is expecting temperatures in the low 80s this week.

However, a significant cooldown is looming as a trough of low pressure is expected to sweep through.

Beginning Friday, temperatures are expected to come down across Northern California.

By Saturday and Sunday, there will be a chance of showers for the region.