Bay Area weather to cool down as low pressure approaches region

"A warm spell in the Bay Area created by a high-pressure build is expected to peak on Tuesday, according to the National Weather Service, and the cooldown that's coming will be rapid and significant. It may also bring a smidge of rain to certain areas of the region by Thursday or Friday. The high pressure has been building since the weekend along with the temperatures, which are expected to reach 88 in Livermore, 87 in Concord and 85 in San Jose amid sunny skies Tuesday."

"The low pressure is coming from the Pacific Northwest, according to the weather service, and on a typical path to hit land in the North Bay. That will bring a lowering of temperatures by as much as 10-12 degrees on Wednesday, with possibly another 4-5 degree drop from that by Friday. The rain that may fall is most likely to be light rain, with the heaviest in the North Bay."

A high-pressure build will produce a warm spell across the Bay Area that peaks Tuesday with sunny skies and temperatures near 88 in Livermore, 87 in Concord and 85 in San Jose. A Pacific Northwest low pressure system will move toward the North Bay on a typical path, triggering a rapid cooldown of 10–12 degrees on Wednesday and a further 4–5 degree drop by Friday. Light rain is possible in parts of the region late week, heaviest in the North Bay, with rain totals in the tenths of inches in heavier areas and hundredths elsewhere. Forecasts may change; check updates.

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