Days. Several reenforcing shots of cold air because a system is sinking to the south. You may have had a drop or two on your windshield, liz, maybe i did this morning, not really. But the system, there it is, higher elevations, maybe a Little Something out towards rio vista. As we look at the Bigger Picture you can see the circulation, all missing the bay area, and theres a Second System that will pretty much do the same thing tonight, 47 in santa clara, 48 in mountain view, 49 San Francisco, 42 in napa. With the cloud cover, in the 40s. Look at that temperature change, 9 to 16 degrees cooler. Upper elevations, its breezy, sunny and breezy afternoon. Its going to be brisk, lucky to reach the 60s out there and well let you know about the Second System, the week ahead, in a few minutes. Joe biden addressed the nation to say his prospects for taking the white house, are looking good. This morning he does lead in four critical battleground states yet to be called, were talking about georgi