Grab an umbrella Monday.
The calendar says mid-May, but the weather forecast feels more like December all across Northern California.
NBC Bay Area meteorologist Christina Loren says the rainy weekend was just a taste of things to come for the work week. A storm system made its way to the Bay Area starting midday Monday. The rain continued through Monday night. A second colder system is stacked up off the coast with more rain predicted Tuesday. Loren says things will clear out by Wednesday.
The weather is coming down in the form of snow in the Sierra. There is a rare winter storm warning there Monday night through Wednesday morning with a couple feet of snow predicted in the higher elevations. The chance of snow in Truckee Monday night is listed at 98-percent.
The snow forced a change in California's premier Amgen Tour bike race. It was supposed to take off from Squaw Valley on Sunday, but organizers moved it to Monday and in Nevada City because of snow and ice conditions.
Evidence of the wild weather could be seen in the town of Roseville where a lightning bolt struck a tree on Sunday, blowing the oak apart and sending rocks flying through the window of a house. The tree then split, causing part of it to fall on top of a car. The backlash was enough to burn out circuit boards in nearby homes, according to KCRA in Sacramento.
Summer will arrive at some point, just not yet.