Rain clouds are moving out
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The unusual September weather pattern will soon be fading.  Friday morning starts off with some clouds and patchy drizzle.  Partly sunny skies are expected later in the day.  Highs should range from the mid 60s to the upper 70s. Warmer temperatures are expected by Labor Day. Have a great weekend! -Mark

Unsettled Wednesday weather, light rain approaches North Bay
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Light rain is currently approaching the North Bay and will arrive by Wednesday morning, while a historic, record-deep 5,200-foot marine layer continues to trap an unseasonably cold, fall-like air mass over Northern California.

Cooler pattern
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September starts off with a cooler than average weather pattern.  Low clouds are expected during the morning hours.  A few areas could also pick up drizzle.  Highs should range from the low 60s to the mid 70s.

Cooler pattern
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Heat will remain a distant stranger for now.  A cool weather pattern is setting up camp in the Pacific.  Low clouds will blanket most of the area Monday.  Chance of drizzle too!  Highs should range from the low 60s to the upper 70s.  Tuesday will be the coolest day of the period. Have a great week! -Mark

Early fall preview continues
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Happy Sunday! A pleasant day is on tap across the Bay Area, with morning low clouds giving way to mostly sunny skies, away from the coast plus mild temperatures and a breezy afternoon. Changes arrive as we head into the first week of September. A deepening marine layer and noticeably cooler temps. in the forecast Monday, even cooler on Tuesday. There is also a slight chance of drizzle and light spotty showers in the days ahead. Looking to Labor Day weekend, the same type of pattern may keep temperatures below normal with plenty of coastal clouds and perhaps additional moisture from the south returning as well. 

Sunday Funday
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Sunday Forecast  Daytime Temperatures: A broad upper-level low-pressure system parked over the Pacific Northwest and British Columbia is keeping the region comfortably cool. Expect afternoon temperatures across the entire Bay Area to remain a few to several degrees below late-August seasonal averages. The Microclimate Numbers: Immediate Pacific Coast: Crisp and autumnal, staying stuck in the low-to-mid 60s. Bayside Shoreline: Highly comfortable with highs reaching the upper 60s to mid-70s. Inland Valleys: Capped beautifully in the upper 70s to low 80s. Marine Layer & Clearing: The marine layer is forecast to deepen tonight. Morning low clouds will gradually mix out, giving way to mostly sunny skies for the afternoon hours Afternoon Winds: Breezy west-to-southwest 10 - 20 mph. Perhaps a little haze from the fires to the south, however, no alerts or advisories.

Fall preview on tap for the weekend
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Happy Saturday everyone! Summer isn’t over yet, but it might feel like it. Under partly cloudy skies and a brisk onshore breeze, expect afternoon temperatures to drop well below average, ranging from low 60s at the coast to mid 80s inland. 

August's last weekend feels like Autumn
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Atmospheric moisture shifts eastward, allowing the marine layer to retreat to the coast by the afternoon for widespread sunshine inland. Temperatures will bounce back slightly. SATURDAY Coastal Highs: Remaining chilly in the upper 60s with persistent afternoon shoreline clouds. Bayshore: Reaching comfortable highs in the low-to-mid 70s. Inland: Mostly sunny and warmer, climbing into the low-to-mid 80s. Winds: A strengthening offshore trough will drive gusty onshore winds. Expect widespread ocean breezes shifting west-southwest at 10 to 20 mph, with afternoon gusts peaking around 24 mph near gaps and passes.  SUNDAY Coastal Highs: Mid-to-upper 60s under morning marine stratus. Bayshore: Upper 60s to around 70 degrees. Inland: Cooling down to the mid-to-upper 70s (5 to 15 degrees below seasonal averages). Winds: Sustained, southwest breezes will continue at 10 to 15 mph, keeping conditions feeling crisp with evening gusts tapering off around 20 mph.  Have a nice weekend!

Tropical clouds
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Tropical clouds will continue to drift into the Bay Area Friday.  The slight chance (20%) of showers has also been introduced.  Potential lightning strikes will boost the fire danger.  A Red Flag Warning has been posted for the Santa Cruz Mountains and Monterey Bay for most of Friday,  Our cooling trend begins.  Highs should range from the low 60s to the mid 80s.

Tropical clouds moving in while the heat hangs on for one more day
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We have a classic summertime set up with temps running near average along the coast and bay. Toasty temps. inland with afternoon highs reaching into the 90s on Thursday. Patchy fog and tropical clouds during the evening could make it difficult to see the lunar eclipse.  Bigger changes are expected on Friday as  cloudy, cooler, breezier weather arrives. A few showers are possible as atmospheric moisture surges over the Bay Area Thunderstorms/dry lightning remain unlikely, but from a fire-weather perspective, it's worth watching.

Warmer Wednesday
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A shallow marine layer will keep the coast near seasonal averages through Wednesday, while inland areas experience warm, dry conditions with temperatures 10–12°F above average. Breezy onshore winds of 20–35 mph are expected along the coast and in valleys, with near-critical fire weather conditions persisting above 1,000 feet through Thursday. Coastal areas will see nightly stratus clearing by midday, and a significant pattern change with cooler temperatures and tropical moisture is expected by the weekend.  No formal watches or warnings are currently in effect, except a Small Craft Advisory inside and outside the Gate until Thursday 9AM with stiff Northwest winds to 30 Knots.

Warmer Tuesday
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Warmer temperatures in the Tuesday forecast!  Low clouds will blanket the coast and bay during the morning hours.  We are expecting hazy sun later in the day.  Highs should range from the mid 60s to the low 90s. The warm to hot pattern remains in place through the weekend.

Cooler Monday forecast
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Your Monday weather forecast features cooler temperatures.  Low clouds will resurface near the the coast and bay during the commute.  The clouds are expected to clear back to near the coast later in the day.  Highs should range from the mid 60s to the low 90s.

Slightly warmer Sunday Fun-day
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Happy Sunday! Cool at the coast, mild bay, hot inland today with low clouds near the shore and mid/high level clouds for all. Highs will range from 60s at the coast to mid 90s inland.  Inland temps drop 3–6 degrees Monday before warming back up Tuesday and holding steady for the rest of the week.

Slightly warmer today
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Happy Saturday! The Bay Area will remain near average through next week. Morning coastal clouds will give way to afternoon sunshine, with highs ranging from the 60s at the coast and 70s near the bay to low 80s-low 90s inland. While afternoon onshore winds could gust up to 30 mph near the coast and through gaps and passes, dry warm conditions remain in our hills.   In regard to Tropical Storm Moke, the storm is forecast to pass south of the Hawaiian Islands this weekend, but it could still bring heavy rain, strong winds and dangerous surf, particularly on the Big Island, where 5 to 10 inches of rain, and isolated totals up to 15 inches, could trigger flash flooding and mudslides. A Flood Watch is in effect from late Saturday night through Monday afternoon.

Fogust takes a break
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The Coast Cloudy start with patchy fog and a few localized spots of coastal drizzle in the morning. Clouds retreat to the beaches by midday, leaving mostly sunny skies! Unseasonably cool with daytime highs remaining in the mid-60s to (low 70s in Santa Cruz). West Winds 10-20 mph occasional stronger gusts. Bayshore Morning low clouds will cover areas like San Francisco, Oakland and San Bruno before burning off to clear, sunny conditions by 11:00 AM. Mild and comfortable with highs peaking in the high 60s to mid-70s (69°F in San Francisco and 73°F in Redwood City).  Steady onshore winds.  Inland Valleys & Hills Completely sunny by mid morning after any brief valley stratus burns away. Higher elevations above 1,000 feet will remain notably warm and dry. Significantly warmer. Reaching the low to mid-80s, except up to 94 degrees in the hottest locations well Inland. (90 in the TriValley, 92 Fairfield, Discovery Bay, Brentwood). Breezy west afternoon winds 10-20 mph. Enjoy your weekend!

Partly cloudy and unseasonably mild today
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Happy Friday! It’s a cloudy, cool locally drizzly start to Friday, with the marine layer reaching farther inland. Look for low cloud clearing late morning into the afternoon, with high level clouds remaining for the entire day.  The weekend warms slightly, with morning clouds followed by afternoon sunshine and temperatures near average. Onshore winds will remain breezy at times, especially near the coast and through the gaps. Meanwhile, Tropical Depression Two-C, currently southeast of Hawaii, is forecast to track generally westward toward and south of the islands; while it poses no direct threat to Hawaii, heavy rain, wind, and rough surf.

A break from the heat
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The minor cooling trend will continue.  We are expecting another blanket of clouds Friday morning.  Look for a sun & cloud mix later in the day.  Highs should range from the mid 60s near the coast to the mid 80s inland. The weekend forecast features slightly warmer temperatures.

Slightly cooler forecast
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Low clouds, along with a sprinkling of drizzle, will move into bay Thursday morning.  The clouds will slowly clear back to near the shoreline later in the day, revealing partly sunny skies.  Highs should range from the low 60s to the upper 80s.

Weather on repeat
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Happy Tuesday evening! Wednesday: Coastal fog & drizzle: Expect low clouds and fog along the coast, with potential early morning drizzle in Half Moon Bay, Santa Cruz, and Santa Rosa. Afternoon highs: A near-carbon copy of Monday's temperatures.60s at the Coast, 70s and 80s Bayshore and up to 94 degrees for the hottest locations Inland. Long-Term (Thursday Through Monday) Cooling trend: The approaching trough will deepen the marine layer, keeping morning clouds around longer and cooling temperatures slightly. Breezy conditions: Onshore winds will pick up along the coast, coastal gaps (Petaluma Gap), and East Bay saddles (Altamont Pass/The Delta). Fire weather risk: While higher humidity will help suppress ignitions at elevation, breezy winds acting on fully cured fine fuels could cause any active fires to spread quickly. Convective potential: Mid-level moisture will move in late week, raising a slight possibility of high-based showers. However, lightning chances are under 1% due to a lack of upper-level cooling, though localized gusty mountain winds remain possible.