San Jose woke up today to crisp, blue skies and cool air, with temperatures sitting near 54°F at Mineta San José International Airport and pockets of patchy fog trying to hang on in the lowest-lying neighborhoods. Inland spots will not stay cool for long, with temperatures expected to jump into the upper 70s by afternoon once the morning marine layer burns off. Light west-southwest breezes will strengthen through the day, with the usual extra gusts on exposed bridges and hilltops that can make it feel a bit blustery.
Afternoon Warmth, Foggy Mornings
Any lingering patchy fog before 9 AM should thin out by late morning, giving way to sunshine and a high near 79°F, especially for inland neighborhoods that tend to run hotter. The National Weather Service is calling for west-southwest winds around 2 to 10 mph, with gusts up to about 18 mph this afternoon, so it could feel breezy along open corridors and overpasses. If you are out running early errands, leave a little extra time for shaded ramps and any stretches where visibility drops in the morning gloom.
This Weekend: Rain And Thunder Possible
By tomorrow, the pattern flips as a Pacific cutoff low drifts closer to the coast, bringing a chance of light rain tomorrow night and a much better shot at showers and thunderstorms from Friday through Sunday. Forecasts show roughly a 50% chance of rain tomorrow night, between about 11 PM and 2 AM, rising to around 70% on Friday, when showers and isolated thunderstorms are most likely. Most spots are expected to pick up only a few tenths of an inch, although favored coastal and hill locations could squeeze out up to an inch.
Commuter Tips And What To Watch
Morning fog can knock down visibility for the early commute, and pockets of dense fog may redevelop overnight along creeks and in low-lying corridors, so headlights and slower speeds are your friends where sightlines suddenly shrink. Any thunderstorms this weekend could bring brief heavy downpours, lightning, and gusty winds, which in turn raise the risk of minor flooding or a few downed branches. If you have outdoor plans, it is smart to have a rain plan ready. For the latest timing and any watches or advisories, check the National Weather Service.
Bottom Line
Soak up tomorrow’s sunny, near 80°F weather after the fog lifts, but keep an umbrella within reach and stay flexible on outdoor plans as showers and possible thunderstorms roll through from Friday into Sunday. We will share updates if any watches or warnings are issued.
