Scattered showers moved through portions of the Northern Mountains, Sierra, and Cascades today but are tapering off this evening. Clouds are expected to brush through Northern California tonight, but we will see some clearing as we get closer to tomorrow afternoon. Temperatures were still above average for your first afternoon of 2020, but they were several degrees cooler than your final day of 2019. Valley areas topped out in the mid 50's to low 60's this afternoon, and mountain areas ended up in the mid 40's to mid 50's. Winds have mostly been calm in the valley, but have been up to around 25mph out of the West along the Eastern slopes of the Sierra. Mostly mild weather is expected as we head through tonight. North winds are expected to pick up a bit as high pressure off the coast gets closer to Northern California. We'll be watching the winds closely as they will have a big impact on whether or not we can expect fog to develop as we head into your Thursday morning. Temperatures are projected to dip into the high 30's to mid 40's in the valley overnight, and into the 20's to 30's in the mountains on Thursday morning. There is a chance for some fog in the valley for your morning commute, but it should not last much further into the day. Skies will be partly cloudy for the start of your Thursday with some clearing expected for your afternoon. Partly cloudy to mostly sunny skies are expected. High temperatrues will more than likely be slightly warmer than what we experienced today. Valley areas will top out in the high 50's to low 60's, and mountain areas will end up in the 40's to mid 50's. Similar conditions are expected for your Friday forecast.
The chance for showers will be returning to Northern California late Friday night, and will persist through Saturday evening in most areas. Some showers will be possible in the mountains on Sunday, with the best chance in areas closest to the Oregon and Nevada borders. Snow levels will are expected to be in the 5000' to 6000' range this weekend. Temperatures will be slightly cooler this weekend, but we'll still end up in the mid to high 50's in the valley. Valley areas are expected to stay dry on Sunday. We'll be dry across our entire region for the start of next week, and temperatures will climb back into the high 50's to low 60's in the valley on Monday. Mountain areas can expect high temperatures to end up in the 40's to 50's early next week. Overnight low temperatures will be in the mid to high 30's in the valley and in the teens to 20's in the mountains from this weekend through early next week.
The next chance for showers will be ahead for late Tuesday night into Wednesday of next week, but models are still fairly uncertain on the details at this time.