On Sunday morning, some parts of the Bay Area were greeted by subfreezing temperatures.

The National Weather Service said that across the region, temperatures hit in the upper 20s to mid-30s on Sunday.

The chilly mornings, however, will not stay for long.

According to meteorologists, more clouds will be delivered to the Bay Area on Sunday by a system moving into the Pacific Northwest. This triggered morning temperatures to go back to the upper 30s to mid-30s by Monday.

Weather service’s meteorologist Eleanor Dhuyvetter said: “We’ll get our winds from the southwest, which should warm us a little bit this week.”

Light rain is also expected to be experienced in the region from Sunday evening into Monday morning, also due to the weather system.

The weather service said the North Bay can experience up to 0.50 inches of rain until Wednesday. Other areas, meanwhile, could expect 0.25 inches of rain.

“It should be a pretty pleasant week with very few to no impacts,” Dhuyvetter said.

The weather service listed the roundup of temperatures across the region on Sunday at 5:00 a.m., as reported by San Francisco Chronicle:

• Salinas: 41 degrees

• Downtown San Francisco: 40 degrees

• Hayward: 36 degrees

• Oakland: 34 degrees

• San Jose: 34 degrees

• Watsonville: 33 degrees

• Concord: 30 degrees

• Hollister: 28 degrees

• Petaluma: 28 degrees

• San Martin: 28 degrees

• Santa Rosa: 26 degrees