The Bay Area is in for a weather rollercoaster ride.

A light storm system that swept into the region Monday is expected to give way to significantly warmer temperatures through the end of the work week. But cool and windy conditions are on tap for Saturday, according to the National Weather Service office in Monterey.

“We’ll have a rollercoaster-type weather pattern this week,” said meteorologist Rick Canepa.

Up to a quarter of an inch of rain could fall before the storm system moves out of the area Tuesday, according to the weather service. But as of 5:15 p.m. Monday, 24-hour totals included .04 inches in Napa, .01 inches in San Jose and trace amounts in Hayward.

An upper level ridge is forecast to build into California, resulting in noticeably warmer temperatures Wednesday through Friday, according to the weather service. Thursday is expected to be the warmest day of the week, with the mercury climbing into the low 80s in some inland locations, including San Jose, Livermore and Concord.

Cooler temperatures are set to return by the weekend.

“Wind will be the main feature to watch,” said Canepa, adding that 20 to 30 mph speeds are expected.