San Francisco kicked off Thanksgiving on the chilly, soggy side today, with upper 40s on the thermometer and humidity so high it squeezed out dense pockets of fog in some inland valleys. A Dense Fog Advisory remains in effect until 10 AM PST for parts of the North Bay and East Bay interior valleys, which could slow early commutes. By late morning, most neighborhoods should transition from gray to blue, setting up a pleasant Thanksgiving afternoon with highs near 63°F and a brisk north to northwest breeze inland.
Afternoon Winds Pick Up
North to northwest winds are expected to ramp up through the morning and into the afternoon, generally in the 7–13 mph range inland, and staying on the breezy side along the Embarcadero and coastal approaches. Overnight and Friday will bring similar onshore flow with moderate to fresh north winds possible offshore, so conditions on the bay will run choppier than usual. Boaters should note that small craft advisories are scheduled for parts of the outer coast on Friday; the latest notices are available from the National Weather Service.
Foggy Mornings, Sunny Afternoons
Dense low clouds and valley fog will hang on in spots through mid-morning, especially in the North Bay and East Bay interior valleys, so factor in some extra drive time if your route cuts through those low-lying areas. Once the sun wins the battle, most of the Bay Area should see mostly sunny skies with comfortable highs in the low 60s. Patchy fog is expected to redevelop overnight and again Friday morning in the usual sheltered spots.
Weekend Outlook
The cooler pattern persists into Friday and the weekend, with highs generally remaining in the low 60s and overnight lows near the upper 40s. Saturday and Sunday are expected to be repeat performances, with morning fog or low clouds that burn off to leave mostly sunny afternoons. The extended forecast indicates a generally unsettled pattern next week, so keep an eye on updates if you have outdoor plans later in the week.
What This Means For Your Thanksgiving Plans
If you are out early, plan for patchy to dense fog before 10 AM PST in some valleys, but by the time the turkey hits the table, outdoor plans should be in good shape, with sunshine and cool, comfortable temperatures. Anyone heading out on the water this weekend should check local marine forecasts before leaving the dock, since bridges and other exposed spots will feel those stronger north winds. For full details and any marine advisories, see the latest forecast from the National Weather Service.
