The Bay Area’s spring weather will continue its ideal run of near perfection for those who aren’t huge fans of heat, with yet another significant cooldown about to envelop the hottest parts of the region and make the cooler areas even chillier.
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As for the recent hot spell, the National Weather Service said it’s about to be nipped by the influence of another low-pressure trough. This comes after a couple of days in which the region’s hottest spots touched 90, and the rest of the Bay Area got into the 70s.
Same as its been since the end of an absurdly hot March.
“You’ll see a gradual cooldown over the weekend and continuing into the week,” NWS meteorologist Roger Gass said. “Proabably 10-12 degrees or cooler. It’ll be more significant in the hottest areas. Then we have some potential for light rain on Monday night into Tuesday as that low drops south.”
That low-pressure trough is descending from the Gulf of Alaska and like most of those systems is expected to have its biggest influence on San Francisco and up the North Bay.
“We don’t expect widespread rain, but it won’t surprise me to see some rain in San Francisco all the way up to Petaluma,” Gass said. “It won’t be heavy but it will be harder than drizzle.”
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The hottest temperatures Friday were expected to peak at 91 to 93 degrees in far eastern Contra Costa County. Livermore was expected to reach 87 degrees in Alameda County, while San Jose and Morgan Hill were expected to get up to 84. On Saturday, the temperatures in the same places are expected to peak at 79 in Contra Costa County, 71 in Alameda County and 72 in the South Bay.
For those seeking comfort at the beach, a beach hazards statement by the weather service remained in place until 9 a.m. Saturday after going into effect at 3 a.m. Friday. The weather service said there was an increased chance for sneaker waves and rip currents advised people to stay off rocks.
The cool air of the beach probably was significant enough to cool down from the heat. San Francisco was expected to peak Friday at 68 degrees and Saturday at 62. Pacifica is expected to get up only to 57 on Saturday after an expected high of 61 on Friday. Stinson Beach’s high was forecast to be 71 on Friday and 62 on Saturday.
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