San Francisco Bay Area Forecast 1 to 2 days (07/08/20-07/09/20)–  Mostly clear today through Thursday, except for patchy low clouds near the coast late nights and early mornings. High temperatures in the 60’s into the 70’s near the coast into the mid 80’s inland. Low temperatures mostly in the low 50’s to low 60’s. Westerly winds 5 to 15 knots increasing to 10 to 20 knots with stronger gusts near the coast in the afternoons.

Extended Forecast for Central California (Including Napa County south along the Big Sur Coastline and east to the Central Sierras 3 to 7 days (07/10/20-07/14/20- Mostly clear Thursday night through Tuesday, except patchy low clouds near the coast at times through Friday morning . High temperatures averaging mostly in the low 60’s to low 80’s near the coast into the low 90’s in the far inland valleys through Friday and into the low 100’s over the weekend into early next week. Low temperatures mostly in the low 50’s to low 60’s.

Long Range Weather Outlook Northern and Central California 8 to 15 days (07/15/20 – 07/22/20)   Mostly fair with patchy low clouds near the coast at times early in the period with a slight chance of showers and thundershowers over the mountains late in the period with near normal temperatures.

Very Long Range Weather Outlook Northern and Central California 16 to 20 days (07/23/20 – 07/26/20) – Mostly fair weather, except for a slight chance of showers and thundershowers over the Sierras. Temperatures averaging near normal during the period.

 

Northern and Central California  1 to 7 day Forecast Discussion-  A trough has retrograded westward today bringing cooler temperatures and an increase in the marine influences and breezy conditions along the coast.    Higher pressures will follow later this week and bring warmer weather to the interior sections of the state and reduced marine influence near the coast but continued normal temperatures near the coast with high temperatures reaching into the mid 80’s in the coastal valleys and high 90’s or low 100’s in the far inland valleys for the weekend into early next week.  

Northern and Central California 8 to 15 day extended forecast –   The most recent computer models show a trend towards a trough near or off the coast of Pacific Northwest with west to southwest winds aloft over the northern sections of state through much of the period.  Several weak disturbances off the coast later in the period could spark a slight chance of showers and thundershowers over the Sierras as southeasterly winds bring moisture northward into the interior of California.  

Northern and Central California 16 to 20 day extended Forecast – The most recent computer model show mainly high pressure over Southern California with southeast winds aloft over the interior that could bring a slight chance of afternoon and evening showers and thundershowers north over the mountains and mostly fair weather over the remainder of California.  This pattern would bring near normal temperatures.