San Jose woke up today under low clouds and a patchy marine layer, with temperatures sitting in the mid-50s before sunrise. Expect pockets of fog in low-lying neighborhoods between about 7 AM and 9 AM, then a quick breakup into mostly sunny skies and a high near 67°F by midafternoon. Winds will start out light, then veer to the northwest and pick up through the day as a drier, warmer pattern settles in heading toward the weekend. If you are planning to be outside, the afternoon is the sweet spot rather than the early morning.
Morning Fog, Then Sunshine
Patchy fog will be most likely between about 7 AM and 9 AM today, cutting visibility on some side streets and bridge approaches until the sun eats away at the marine layer. The day should still climb to a high near 67°F, easing back a few degrees late afternoon, with some inland pockets running a bit warmer. Light southwest winds early will swing to the northwest and peak in the single digits to low teens mph in more exposed spots, according to NWS San Francisco.
Midweek Wind Shift And Marine Advisories
A sharper trough arrives midweek, ushering in a gusty northwest wind pattern from Wednesday through Friday that could drive northerly gusts in the 25–40+ mph range across higher terrain and along the coast. The National Weather Service has issued Small Craft Advisories for parts of Monterey Bay and adjacent waters starting tomorrow until Wednesday morning, so boaters should plan on building seas and rough conditions. That drier offshore push will clear skies and lift daytime highs into the low to mid-70s by the weekend, per NWS San Francisco.
Commute And Safety Notes
For early drivers today, build in extra time and stick to low beams in the fog, since visibility can drop quickly near ramps and waterways. Mariners should hold off on nonessential trips during the Small Craft Advisory period, and anyone living on exposed ridgelines will want to secure loose outdoor items ahead of the midweek gusts. Overall, afternoons look comfortably mild for most outdoor plans, while mornings will bring the main nuisance for the next few days.
