San Francisco Bay Area residents are starting the day socked in by dense fog, with shorelines and interior valleys seeing visibility slashed and temperatures hovering in the low 50s. Drivers can expect sudden whiteout-style patches on local streets and highways during the morning commute before conditions steadily improve. By late morning, most neighborhoods should see the fog lift and skies turn sunny, sending afternoon highs up to around 70°F. Light north winds will keep things calmer inland than along the breezier waterfront.
Foggy Commute This Morning
A Dense Fog Advisory is in effect this morning for East Bay interior valleys, San Francisco and the Bay shoreline, where visibility may drop to one-quarter mile or less and make driving tricky. If you have to hit the road, keep your low-beam headlights on, ease off the gas and leave extra stopping distance; pockets of thick fog can appear without much warning. Morning temperatures are generally in the low 50s, with many inland spots near 53°F. According to NWS San Francisco, the worst of the fog should lift by mid- to late morning across most of the region.
How To Plan Your Commute
Give yourself extra time and check real-time Muni, BART and Caltrain updates before heading out, since reduced visibility and slower traffic could tack on a few minutes. If you rely on transit, sign up for in-app alerts or text messages so you do not miss any service notices or quick schedule changes during the morning rush. For this week’s planned closures and detailed service information, see SFMTA.
Sun, Warm Days, Then A Slight Cooldown
Once the fog burns off late this morning, the Bay Area is in for mostly sunny skies and a high near 70°F, with some inland microclimates nudging into the low 70s. The warm streak continues Friday, with highs near 73°F, before a subtle cooldown on Saturday as a weak low approaches. There is a slight chance of light showers from Sunday into Monday, but widespread rain is unlikely and a drier, milder pattern is expected to return early next week, according to NWS San Francisco.
