San Francisco, CA – California is waking to a crisp, 50-degree start this morning, the kind that makes the city skyline shimmer over the Bay. For now, clear skies and calm winds dominate, but subtle changes are already on the horizon for travelers hitting the road or skies this Thanksgiving.
According to the National Weather Service, conditions stay dry and comfortable today with highs near 63°F and a light north wind. Thanksgiving Day will be mostly sunny, reaching 64°F — ideal for travelers crossing the Bay Bridge or heading south along U.S. 101. But by Thursday evening, patchy fog will begin to form near coastal valleys and low-lying routes, especially north of Oakland and across the Peninsula.
Drivers planning early Black Friday shopping trips should take extra care, as dense fog could develop between 2 a.m. and 9 a.m. Friday. Visibility may drop below a quarter mile in some areas, slowing traffic and affecting travel times along I-80 and Highway 101. Friday afternoon looks brighter, with highs near 62°F and light winds.
As the weekend unfolds, Saturday brings another round of dense fog, followed by partly sunny skies and highs around 61°F. Sunday will be mostly sunny and mild, wrapping up the long weekend with highs in the low 60s.
National models hint at a major Arctic front arriving early next week, pushing south across the northern and central U.S. from December 1 through 5. That system could deliver heavy snow and below-normal temperatures, a sharp reminder that winter’s arrival is near — even for those basking in California’s late-fall calm.
5-Day Outlook for San Francisco:
- Wednesday: Sunny, high 63°F
- Thursday (Thanksgiving): Mostly sunny, high 64°F
- Friday: Morning fog, high 62°F
- Saturday: Fog early, high 61°F
- Sunday: Mostly sunny, high 62°F
