The San Francisco Bay Area is expected to experience a cool and cloudy weekend with below-normal temperatures, patchy drizzle, and breezy coastal winds. Weather experts say conditions will slowly improve, with warmer weather likely arriving next week.
Overall Weather Pattern for the Bay Area
A weak atmospheric disturbance is increasing moisture in the region, creating a thick marine layer that may rise up to 2,500 feet. This will bring low clouds, fog, and light drizzle in several parts of the Bay Area, especially near coastal and hill regions.
Although thunderstorms are not expected locally, parts of Northern California could still see lightning risks in other areas. For the Bay Area, the main impact will be cloudy skies and cool temperatures.
Weekend Weather Outlook
Friday Weather Conditions
Friday will stay cooler than normal across most of the region. In some areas of Wine Country, temperatures may not go above 70°F. Morning drizzle and cloudy skies will be common, especially near the coast and hills.
Winds from the southwest will bring moist air, keeping skies cloudy and slowing down sunshine in many areas.
Saturday Forecast
On Saturday, clouds may begin to break in some areas during late morning. However, coastal fog and afternoon winds will likely return.
Even with some sunshine, temperatures will still remain below seasonal averages.
Sunday Outlook
Sunday may bring slightly warmer conditions, especially in inland areas of the North Bay and East Bay. However, temperatures will still stay close to or slightly below normal levels for late June.
Regional Weather Breakdown
San Francisco and Coastal Areas
San Francisco will see a mix of clouds and brief sunshine during the day, followed by fog and cool conditions at night. High temperatures will stay in the upper 50s to mid-60s, with breezy winds in the afternoon.
North Bay (Marin, Sonoma, Napa)
The North Bay will experience morning drizzle and cooler-than-usual temperatures on Friday. Highs will stay in the upper 60s to 70s, with slightly warmer conditions returning by Sunday.
East Bay (Oakland, Berkeley, Fremont)
Morning fog may last longer than usual, especially near hills. Temperatures will range from the upper 60s to mid-70s, with slightly warmer conditions expected by Sunday.
Peninsula and Pacific Coast
Coastal areas like Daly City, Pacifica, and Half Moon Bay may see morning drizzle and persistent clouds. Inland Peninsula cities will experience slightly warmer temperatures, reaching the 70s in some areas.
South Bay and Santa Cruz
The South Bay, including San Jose, is expected to be the warmest part of the region, with highs reaching the low to mid-80s on Friday. Santa Cruz and nearby coastal areas will stay cooler with morning drizzle and slow clearing skies.
Marine Layer and Wind Effects
A strong marine layer is keeping coastal air cool and humid. This layer is responsible for low clouds, fog, and light drizzle across many parts of the Bay Area.
Afternoon winds from the west and northwest will continue to push fog back toward the coast, especially during evenings and nights.
Upcoming Weather Next Week
A high-pressure system building over the Southwest United States is expected to bring warmer weather next week. Temperatures will gradually rise across the Bay Area, with some inland locations possibly reaching the 90s by midweek.
Safety and Outdoor Tips
Even though temperatures are mild, the UV index remains high during midday hours. People planning outdoor activities should still use sun protection and stay hydrated.
Conclusion
The San Francisco Bay Area will see a cool, cloudy, and slightly wet weekend with below-normal temperatures and breezy winds. While conditions remain mild and comfortable for outdoor plans, a gradual warm-up is expected next week, bringing a return of sunnier and hotter weather.
