We had sunny skies, warm temperatures, and breezy North winds across Northern California on Tuesday afternoon. Winds were not as strong as yesterday, and mostly topped out at around 15mph. Temperatures ended up in the 70's to low 80's in the valley, in the high 60's to low 70's in the foothills, and in the low 60's to low 70's in most mountain areas. High pressure off the coast in the Pacific has continued to be the dominant feature in our forecast, and will continue to be the dominant feature over the next several days.
A weak area of low pressure will drop down off the coast of California on Wednesday. That will result in some clouds brushing through our region and modest winds out of the South on Wednesday afternoon. Temperatures will stay well above average for this time of year over the next several days. Valley areas can expect low temperatures in the 40's to low 50's and high temperatures in the high 70's to low 80's through Friday. Foothill areas will start out in the 40's to 50's and end up in the 60's to mid 70's from Wednesday through Friday. Mountain areas will dip into the 30's to 40's overnight and will end up in the 60's to 70's over the next few afternoons. An area of low pressure sliding down into the Great Basin to our East will bring the potential for gusty North winds, and scattered Sierra showers back into our forecast on Thursday. The best chance for showers will be to our South, but we can't rule out some light precipitation in our region. Dry and warm weather is expected on Friday.
Low pressure dropping down towards Northern California from the Gulf of Alaska will merge with an area of low pressure approaching from the Eastern Pacific this weekend, and that will result in a cooling trend and the potential for showers returning to our region. We'll have a modest drop in temperatures and increasing clouds through your Saturday. Temperatures will end up below average on Sunday afternoon and showers will become more likely through the day. The current outlook puts the best chance for showers in the Sunday evening through Monday timeframe. Showers are expected to be light and snow levels are projected to be around 6500' or above.