Sonoma woke up under a thick blanket of fog today, with temperatures hovering in the low 40s. Forecasters say the marine layer should peel back by late morning, setting up clear skies for lowland neighborhoods and afternoon highs close to 64°F. After sunset, patchy fog may creep back in, with overnight lows once again settling near 40°F.
Morning Fog, Afternoon Sun
Widespread fog is expected before 10 a.m., which could knock visibility down on local roads during the morning commute. By midday, skies should shift to mostly cloudy or partly sunny, with temperatures topping out around 64°F, then easing into the low 60s later in the afternoon. Winds will start off light from the west-northwest, then bump up to around 5 to 10 mph as the day wears on. These timing and temperature details come from the National Weather Service forecast for the Bay Area, according to NWS San Francisco.
Afternoon Winds Pick Up
By the afternoon, expect gentle gusts in the single digits to about 10 mph. It is just enough breeze to help scrub out lingering low clouds, but not the kind of wind that should cancel most barbecues or park plans. Offshore and coastal waters will be choppier, though, so shore-based activities that depend on calmer seas might feel the impact. Local coverage has been tracking advisory windows and conditions.
Coastal Flooding And Beach Hazards
A Coastal Flood Advisory is in place until noon Sunday for bayshore spots along the San Francisco and San Pablo Bays, and forecasters say minor flooding in low-lying lots, parks, and roads is possible during the highest tides. Along the outer Pacific Coast, a Beach Hazards Statement continues until tomorrow, with long-period swell capable of producing large breaking waves and dangerous sneaker waves. The advice is simple, if not glamorous: stay off jetties and piers and avoid going into the water. The National Weather Service has more safety guidance and tide specifics for affected shorelines, per NWS San Francisco.
Commute And Boating Tips
Drivers should slow down in foggy stretches, stick with low-beam headlights, and leave extra room and time, especially if the route takes you across bridges or near the bay this morning. If you park close to the shoreline, keep an eye out for shallow flooding near high tide and avoid driving through standing water. Boaters are urged to respect any small craft advisories and check current marine products before leaving the harbor, as local outlets continue to monitor conditions, according to ongoing advisory coverage.
Week Ahead
A ridge is expected to nudge temperatures a few degrees above normal from Monday through Wednesday, with highs rising into the mid to upper 60s and mostly dry weather inland. Patchy morning fog will likely stick around for valleys and bay-adjacent areas. Forecasters do not have additional significant rain in the immediate outlook, but keep an eye on updates in case the advisory window shifts later in the week. We will update if conditions or advisories change.
