A trough of low pressure will strengthen along the West Coast over the next few days bringing cooler temperatures, especially for inland areas. A strong ridge over the eastern Pacific will effectively block any mid to high level sub-tropical moisture from entering the area. Still, with a strong trough by Saturday, we'll likely see an uptick in coastal clouds and perhaps some drizzle. Recent model runs have held back on developing a ridge into the area next week, so while a warm-up is expected, it may be a few days later... notably by mid-week.
Today: Cloudy along the coast and inland valley this morning. Patchy fog in the hills between 1,000-2,000ft in elevation. Becoming partly cloudy on the coast this afternoon with highs in the mid 60s to low 70s. Becoming sunny inland today with highs in the mid 70s to low 90s.
Tonight: Clouds return inland tonight. Lows mostly in the upper 40s to upper 50s inland and upper 50s to low 60s on the coast.
Friday: Cloudy early, then becoming partly cloudy on the coast in the afternoon with highs in the mid 60s to low 70s. Becoming mostly sunny inland in the afternoon with a few high clouds and highs in the mid 70s to upper 80s.
Extended: Cool over the weekend, especially inland. Clouds will be a little thick on Saturday with drizzle possible. The low cloud cycle continues into next week, though its intensity will diminish as high pressure eventually builds in. Coastal highs stay fairly steady but inland highs will cool into the 70s-low 80s by Saturday. Fog returns to the coast by mid-week as the heat returns inland.
The Outlook for August 26th through September 3rd calls for Above Normal Temperatures and Near Normal Precipitation...which is little or none this time of year.
Updated by Meteorologist Dann Cianca on Thursday at 8:43 a.m.