Mostly cloudy. A chance of rain. Lows 40 to 46. South winds up to 10 mph.
Wednesday
Mostly cloudy with a slight chance of rain showers early in the morning...then mostly cloudy in the late morning and afternoon. Highs 52 to 61. Northwest winds up to 10 mph.
... Frost advisory in effect from 1 am to 9 am PST Monday...
The National Weather Service in Sacramento has issued a frost advisory... which is in effect from 1 am to 9 am PST Monday.
A dry airmass will remain over northern California tonight... allowing temperatures to once again fall into the lower to mid 30s across the Sacramento Valley... northern San Joaquin Valley... and Delta Region. Some locations may even be within a couple of degrees of their records. As a result... areas of frost will develop during these early morning hours on Monday.
Precautionary/preparedness actions...
A frost advisory means that frost is possible. Sensitive outdoor plants may be killed if left uncovered.
Special Weather Statement
Statement as of 3:04 PM PST on November 15, 2009
... Wet and wintry weather to return on Tuesday and again on Thursday and Friday...
Unsettled and wintry weather will return on Tuesday... as a series of storms move through northern California. The first quick moving system will move across the northern interior Tuesday afternoon and evening... bringing some valley rain and mountain snow to the region. Snow levels will lower to around 3500 feet in the northern mountains to around 5000 feet Tuesday night. A stronger and more impressive system will then move into the region on Thursday and Friday. Locally heavy rains... mountain snows... and breezy conditions are expected to develop Thursday and intensify Thursday night and Friday.
Travelers crossing mountain passes will likely have to Cope with snow and blowing snow by Tuesday afternoon... as snow levels may drop as low as 4000 ft on Wednesday morning. Snow accumulations up to six inches may be possible over the higher elevations... making traveling treacherous over the Sierra. Heavier snowfall and accumulations are possible on Thursday night into Friday... as snow levels levels once again drop to around 4000 feet on Friday.