The National Weather Service says Tuesday through Thursday, about a half-an-inch of rain is expected in the valley with an inch or so of rain in the foothills.
Mike Smith with the Weather Service in Sacramento says there's also a chance of thunderstorms and even a tornado.
"This is probably a pretty normal winter storm for a normal season, so it's not going to help a whole lot; it's just one system," says Smith. "The good news is, we do have more on the way. We're expecting more rain coming up this weekend and then possibly some more even going into next week."
He says the region is still a long way from normal when it comes to precipitation - but there's positive news in the forecast.
Smith says the storm is also likely to bring a foot or two of snow to the Sierra. He says gusty winds are possible, and there's a winter storm warning in effect from 3 p.m. today through Thursday morning.
CHP is requiring chains on I-80 between Donner Lake Rd. to Nyack and Eastbound 1-80 at Drum Forebay is closed due to heavy snow and multiple accidents. Downtown Sacramento's Concert in the Park was cancelled due to the weather.
The National Weather Service has issued a severe thunderstorm warning for Sutter and Yuba counties until 1:30 p.m. Unsettled weather will continue through Saturday.
The storm that's been bringing strong winds, heavy rain and snow to much of Northern California over the past four days is weakening.
The California grape harvest dropped seven percent last year from 2014.
A winter storm is forecast to bring mostly rain in the Sierra Nevada Friday, with high snow levels. But Saturday, snow is expected at lower elevations.