Bay Area residents might have noticed the chill in the air lately, as temperatures have hovered below usual summer warmth. According to the National Weather Service San Francisco, locals can expect to stick with sweaters and jackets for a bit longer, with temperatures remaining below to near seasonal normal through Friday. The NWS report highlighted San Jose having tied its record for the lowest maximum temperature for July 25th, a cool 73 degrees, a record set nearly a century ago in 1924.
For those pondering a beach day, it may be wise to postpone, as Napa State Hospital is also forecast to match its 1935 record for the coldest July 26, with a high of just 70 degrees. The marine layer has been particularly stubborn, bringing a "relatively deep marine layer, and drizzle" to the region, according to the National Weather Service. They've also flagged a 5% chance of thunderstorms, which, while low, could result in either locally heavy rainfall or new fire starts, depending on the amount of rain they bring.
Looking ahead, it seems there's a mild respite on the horizon. The long-term forecast suggests a minor warming trend with temperatures returning closer to normal for inland areas as high pressure builds in the West. But don't expect any major shifts; cooler coastal conditions and mild interiors will likely stay throughout the week, with persistent onshore flow.
Those navigating the famed San Francisco fog must know IFR and MVFR conditions as the marine layer persists. Flights in and out of SFO and Oakland airports may experience delays due to lower-than-usual ceilings. The National Weather Service report explicitly mentioned a "decent chance that the ceilings never break at SFO and OAK." Additionally, seafarers are cautioned to brace for "moderate northwest breezes and moderate seas prevail through Tuesday with stronger gusts in the afternoons." Mariners should prep for drizzle this morning, and those planning to hit the waters off Monterey Bay and coastal areas north to Point Arena should take note of a Small Craft Advisory in effect for the coming days.
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