The upper-level trough that was situated near the Bay Area Wednesday has now shifted east towards Merced Thursday morning. The result is cloudy skies from the coast to the valleys with a 10% chance of drizzle.
Morning commuters should be prepared for slick roads through rush hour.
As the clouds mix out by late morning for most valley locations, clearing will be a bit more gradual along the coast. Some models are suggesting clearing happening by the afternoon for the beaches, but others show clouds lingering throughout the entire day. Temperatures will continue to trend down Thursday with daytime highs at the coast from the low to mid-60s. The coastal valleys will stay between the upper 60s and mid-70s, but the inland valleys will be cooler and have temperatures in the 70s and 80s.
Winds will be mild to start out Thursday but will increase across valley locations from the afternoon through evening hours as winds could gust up to 20 miles per hour.
Looking ahead to the weekend, onshore flow will decrease and temperatures will begin to gradually increase through the end of the weekend, resulting in daytime highs close to average July temperatures.