An unseasonably cold low-pressure system will meander around to our north over the next few days with a strong onshore flow deepening the marine layer enough for some light rain and drizzle. This will also usher in gusty west winds and much cooler temperatures, by some 10-20 degrees below average. The marine layer will get deep enough for moisture to spill into the mountains with light showers possible. It may also be cold enough during the overnight hours for a few flurries with little to no accumulation expected. The third component will be proximity to the low and possible instability. At this time, it looks like the low will remain mostly over the Central and Northern California, as a result, the chance for afternoon convection is low, but not none. Expect partly cloudy skies this afternoon and evening with temperatures in the 60s. West winds will continue 10-20 mph with isolated gusts near 30 mph. Partly cloudy, windy, and cool tonight with light rain and drizzle possible, mainly on the lower coastal slopes, with lows in the 30s. Windy and cooler tomorrow as highs drop into the lower 50s, west winds continuing 10-20 mph at times. The best chance for any precip across our area will arrive Wednesday night into Thursday morning as lows dip into the upper 20s. Continued cool and breezy on Thursday with a few high clouds as highs reach the mid-50s. This low-pressure system will eject northeast on Friday, allowing weak ridging aloft to build through the weekend. Temperatures will return to normal (70°/39°) over the weekend with light offshore winds. High pressure will strengthen early next week with daytime highs in the mid 70s through Wednesday, cooling slightly later in the week. Overall, a fairly typical spring forecast as troughing along the West Coast trades place with higher pressure, and back again.