San Jose started the day wrapped in a gray, low cloud deck, with pockets of patchy fog near the bay, overnight lows hovering near 49°F, and visibility knocked down along the water. Skies are expected to flip to mostly sunny by late morning, and inland neighborhoods will warm up quickly, with the first 90-degree readings of the season possible by next Monday, May 11. Out on the water, boaters and coastal visitors should note small craft advisories and a growing heat risk for sensitive folks early next week.
Foggy Mornings, Warm Afternoons
The morning fog should burn off by mid to late morning, leaving San Jose with mostly sunny afternoons and a high near 77°F today, with low 80s in inland neighborhoods through the weekend. Forecast highs are expected to climb to about 82°F on Saturday, 84°F next Sunday, and peak near 92°F next Monday, which looks to be the hottest day of the week. Forecasters say this warming trend carries a moderate risk of heat-related illnesses for sensitive populations in interior valleys, according to the National Weather Service.
What To Watch And How To Prepare
Morning fog can make the commute tricky, so use low beams, slow down, and give yourself extra time for trips near the bay and along the water. If you or someone you care for is vulnerable to heat, start planning now for cooler indoor time on Monday and check local cooling options. The Santa Clara County Office of Emergency Management keeps an up-to-date list of cooling centers. For medical emergencies related to heat, call 911.
Boaters And Beachgoers
Small craft advisories are posted for Monterey Bay this afternoon and are expected to recur into the weekend, with fresh to strong northwest breezes and building rough seas that can make for a bumpy ride on smaller vessels. Offshore seas should begin easing late Sunday into Monday, but conditions can change quickly, so check local marine advisories before heading out. See the National Weather Service for the latest marine watches and advisories.
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