Mineta San José International Airport (KSJC) started today under mostly cloudy skies and a chilly 48°F, with patchy fog hanging around the morning commute in low-lying neighborhoods. Once the sun gets to work by mid-morning, the marine layer should peel back, letting inland highs climb into the upper 60s, with a peak near 68°F this afternoon. After sunset, temperatures slide back into the mid-40s.
Afternoon Winds Pick Up
West-northwest breezes are expected to crank up this afternoon, generally 2 to 12 mph with gusts around 20 mph across the valley, while exposed ridgelines and bridges turn noticeably windier. By tomorrow, the flow shifts more offshore, with north-northwest gusts near 25 mph at higher elevations, so it is a good idea to secure lightweight patio furniture and take it easy if you are driving a high-profile vehicle. Small Craft Advisories remain in place for several central coast zones through Thursday night, according to the National Weather Service.
Morning Fog, Sunny Afternoons
Patchy fog could linger in low-lying areas and on side streets until roughly 9 AM, reducing visibility before the sun rises higher and burns off the marine layer. By late morning, most of the valley should be basking in sunshine, though temperatures may slip a few degrees late in the day as the breeze stiffens.
Weekend Rain Outlook
Confidence is growing for at least light, beneficial rain starting Sunday and continuing into early next week, with the best shot at measurable showers from Sunday afternoon into Monday. The exact timing and rainfall totals are still fuzzy this far out, so it is smart to keep a backup plan for outdoor events and check in on updated forecasts later in the week.
Plan Ahead
For now, commuters should budget extra time for those foggy pockets in the morning and keep a tight grip on the wheel along exposed stretches in the afternoon when gusts kick up. Boaters and small-craft operators should review the latest marine forecast before heading out and think about postponing nonessential trips while advisories are active.
