After a bit of a foggy start to your Thursday morning, it ended up being a fairly comfortable day across Northern California. Skies have been partly cloudy to mostly sunny today and temperatures were a few degrees above average for your afternoon. Temperatures in the valley topped out in the low to mid 60's in the valley and foothills, and in the 50's in most mountain areas. Skies will stay mostly clear through tonight and there is a good chance for fog developing in the mid valley for the start of your Friday morning. You may want to give yourself a little extra time to get to where you're going as visibility is expected to be impacted early in the day. Temperatures are expected to dip into the high 30's to low 40's in the valley overnight, and mountain areas will end up in the 20's to low 30's for the start of your Friday. Clouds will increase across Northern California through the day on Friday, but we are expecting to stay dry through at least the evening hours. High temperatures are projected to top out in the high 50's to mid 60's in the valley tomorrow afternoon, while mountain areas end up in the 40's to 50's.
Showers are projected to return to the coastal areas Friday night, and will spread across the remainder of Northern California through early Saturday. We'll also have gusty South winds developing for your Friday evening through very early Saturday morning. A High Wind Warning is set to go into effect for portions of Siskiyou County at 4pm tomorrow afternoon and last through 1am Saturday morning. Sustained winds out of the South could reach around 35mph in Siskiyou County and we could have gusts up to around 55mph. Valley areas will have winds up to around 20mph out of the South on Friday night and the potential for gusts to around 30mph. The potential for showers will linger through the day on Saturday, but the heaviest rain and snow is expected to fall in the overnight hours into early Saturday morning. This wave of showers is expected to move through our region rather quickly and rain and snow totals are expected to stay light. We'll see the potential for a few hundredths of an inch of rain in the valley, and could see up to around a quarter to a third of an inch of rain in higher elevations. Snow levels will range from around 4500' to 6000'. The Northern Mountains will likely see the the heaviest amounts of snow moving through but will still only get up to around 3 inches of snow. Valley areas are currently projected to dry out by the afternoon on Saturday but we could still have some lingering showers in the Sierra. Temperatures will end up a little cooler this weekend but should still be slightly above average for this time of year.
We'll be mostly dry and a little cooler for the start of your Sunday morning. Valley areas will dip into the mid 30's and mountain areas will dip into the teens to 20's on Sunday morning. Another area of low pressure will be brushing through the West Coast on Sunday and will bring the potential for showers to mountain areas and a very slight chance for some light showers in the North end of the valley. Snow levels will continue to be in the 4500' to 6000' range on Sunday but amounts will be minimal. HIgh pressure will build back into Northern California for the start of next week and that will result in dry and warmer weather on Monday. The next chance for showers is expected to return on Tuesday evening. We'll have a few areas of low pressure passing through the West Coast in your forecast next week, which will bring chances for showers from Tuesday night through the weekend. We'll get a much better idea of the timing and strength of the wet systems next week over the next few days.