Take advantage of the dry and mild weather ahead for your Monday because more very wet weather is on the way for your Tuesday and Wednesday. Skies are projected to range between partly to mostly cloudy today. Temperatures are starting out in the 30's to 40's in the valley, the 40's to low 50's in the foothills, and in the 20's to 40's in the mountains early today. Winds are out of the north to around 10mph in the valley today, and out of the south to 10mph in higher elevations of the Sierra. High temperatures are projected to end up in the upper 60's to lower 70's in the valley this afternoon, and in the mid 50's to upper 60's in the foothills and mountains.
Winds will start to pick up out of the south tonight, and the potential for showers will arrive across northern California early in the day on Tuesday. Light to moderate showers are expected in the valley, but foothill and mountain areas are expecting to see moderate to heavy showers on the way in your forecast. A Winter Storm Warning is set to be in effect from 10am Tuesday through 6pm Wednesday along the Western Slopes of the Sierra above 6500'. 1 to 2 feet of snow is projected for that area, with some localized snow totals up to 3 feet during that time. We'll also have a Winter Weather Advisory in effect for the Eastern Slops of the Sierra above 5500' from 1pm Tuesday through 4pm Wednesday. Up to around 6 inches of snowfall is expected in those areas during that time. A High Wind Warning is set to go into effect in Siskiyou County at 10pm tonight and Modoc County at 4am on Tuesday. This warning is projected to last through 7pm Tuesday. Sustained winds to 40mph are expected in this area and gusts up to 80mph will be possible. We also have an additional Wind Advisory in effect for Lassen and Plumas Counties from 7am through 4pm Tuesday. Southwest winds to 25mph are expected, and gusts up to 50mph will be possible in that area through that time. Valley temperatures will start out in the 40's to 50's on Tuesday and Wednesday and will end up in the mid 50's to low 60's on those afternoons. Foothill areas will start out and end up in the 40's to 50's on both of those days. Most mountain areas will start out in the 20's to 30's and end up in the 40's to 50's on Tuesday and Wednesday. Snow levels will start out at around 6000' but will likely drop to around 4500' on Wednesday.
Some mountain showers will linger in your forecast on Thursday, but valley areas are expected to be dry after Thursday morning. We'll have clearing skies and seasonable temperatures from Thursday afternoon through next weekend. That means valley lows will be in the 30's and high temperatures will end up in the 50's to lower 60's. Foothill areas will dip into the 30's to 40's overnight and will end up in the 40's to 50's, and mountain areas will dip into the teens to 20's, and end up in the 40's to lower 50's during that time. Another wet system looks possible early to mid week next week.