Temperatures are not quite as warm for the start of your Wednesday, but are still fairly mild for this time of year. High pressure is building into northern California today, and that will result in mostly sunny skies and warmer temperatures this afternoon. Temperatures are starting out in the 30's to 40's in the valley and foothills, and in the 20's to 30's in our mountain areas. Winds will mostly be up to 10mph out of the north early today, but will become mostly calm this afternoon. High temperatures are projected to top out in the mid 60's to low 70's in the valley, 50's to 60's in the foothills, and mostly in the 50's in the mountains this afternoon.
Low pressure will be approaching the West Coast Wednesday evening through Thursday morning and will result in an increase in clouds on the way for the start of your Thursday. Cooler temperatures are on the way for Thursday afternoon, and showers will spread from northwest to southeast through northern California Thursday afternoon and evening. High temperatures will mostly dip back into the mid to high 50's in the valley, and 40's to lower 50's in the foothills and mountains. The heaviest rain and snow are expected on Thursday night, with showers tapering off early in the day on Friday. Snow levels will mostly start out above 5000' with this wet system, but will dip down to around 4000' by early Friday. Cloudy but dry weather is expected on Friday afternoon, and temperatures will be a little warmer than Thursday.
The next wet system is projected to move into northern California early in the day on Saturday, and could persist into very early Sunday. Snow levels will be lower with this system, and could dip down to around 3500'. Rain and snow amounts look to be around or somewhat lighter than the Thursday into early Friday system, but mountain travel impacts will be lightly with the snowfall during the day on Saturday. Showers will taper off by early Sunday, and we'll be cloudy but mostly dry on Sunday afternoon. Valley temperatures will mostly end up in the mid to high 50's through this weekend, while foothill and mountain areas top out in the 40's to 50's.
Another wet system is projected to return to your forecast on Monday, and will potentially last into Tuesday of next week. None of these storms look to be all that substantial, but rain totals through the next 7 days are projected to be between an inch to 2 inches of rain in the valley, with higher totals in the foothills and mountains. Upwards of a foot of snow can be expected in areas above 5000' through early next week. This is great news for our water supply!