Pleasanton residents should brace for continued freezing temperatures this morning as a frigid Canadian air mass continues its journey across much of the Western United States, according to the National Weather Service.
Temperatures dropped to 24 degrees at 5 a.m. this morning in the Vintage Hills section of Pleasanton although the thermometer is headed for a season normal of 52 degrees by mid-day.
Pleasanton should get a brief relief from the frigid late fall temperatures tonight when the low temperature is expected to reach just 39 degrees.
But then it's back to more hard freezes overnight with lows expected to be 27 degrees for both Saturday and Sunday and daytime highs of 46 tomorrow and 47 Sunday.
A freeze warning issued for much of the Bay Area will remain in effect until 9 a.m. this morning.
"We're finally getting our winter," said National Weather Service forecaster Steve Anderson.
Thursday morning, temperatures dropped to as low as 16 degrees in Napa and 18 degrees in Morgan Hill, according to the weather service.
In San Rafael, residents braved 30-degree temperatures Thursday morning and those in Oakland set out in the 34-degree chill, Anderson said.
Both beat cold-weather records set in 1972.
In Mountain View, temperatures dipped to 32 degrees Thursday morning, breaking a 15-year record, according to the National Weather
Anderson said temperatures are expected to rise slightly this morning, but that rain is expected on Saturday, as well as snow above 2,500
feet throughout the Bay Area.
He said motorists in the region should drive with extra caution on Saturday night and Sunday morning, when runoff from rain and snow is expected to create icy patches on area roadways.
Warmer temperatures are expected next week.
The cold snap is the result of a high-pressure cold air mass that originated in Northern Canada.