San Jose rolled in today under a blanket of low clouds, with Mineta San José International Airport clocking in at about 55°F and some sticky early morning humidity. Patchy valley fog is expected to hang around through the early commute before thinning out by late morning, with inland spots clearing to mostly sunny skies and a high near 75°F.
Foggy Mornings, Sunny Afternoons
Low clouds and pockets of fog are likely before about 9 AM, especially along bay approaches and near creeks, while inland neighborhoods will warm up fastest once the marine layer burns off. Northwest winds should stay on the lighter side this afternoon, generally around 0–10 mph, and overnight lows will dip back into the upper 40s to low 50s, according to the National Weather Service.
Afternoon Winds Pick Up
By afternoon, breezes turn more noticeable, with the strongest gusts on exposed bridges and ridge tops, so cyclists and picnic crews should plan for a bit of wind in the mix. Low clouds and stratus are set to creep back in overnight, with a chance of patchy fog reforming after 2 AM. That means the Thursday morning drive could start off gray again in the usual low-lying trouble spots.
Heat Risk By Early Next Week
The warm-up builds through the weekend and into early next week, with highs near 82°F on Saturday, around 85°F on Sunday, and a more pronounced jump into the low 90s next Monday and Tuesday. Forecasters expect a moderate HeatRisk for inland areas from next Sunday through next Tuesday. If you or someone you look after needs a break from the heat, check local cooling locations, as Santa Clara County lists cooling centers and hot-weather resources.
What To Plan For
Plan for layers for the chilly, foggy start, and shift outdoor plans toward the afternoon or early evening as temperatures trend warmer later in the week. Keep an eye on fresh forecasts from the National Weather Service, and consider moving strenuous outdoor work to cooler hours if you expect to be outside when valley temperatures push into the 90s.
