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Barometric Pressure Forecast for Brentwood, California

Check the barometric pressure forecast for Brentwood in eastern Contra Costa County, between the Sacramento–San Joaquin Delta and the inland slopes beyond Mount Diablo.

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Download Pressure Pal to track barometric pressure and get migraine alerts for Brentwood and your area.

Pressure and weather in Brentwood

Winter Pacific lows cross the Bay Area and change pressure over the Delta’s agricultural plain. Summer’s inland heat and cooler air pushing through the Carquinez Strait create a different wind pattern, so a breezy evening is not automatically a frontal passage.

What this means for you

For Brentwood orchard visits or outdoor sports, record heat and Delta wind as distinct observations in your migraine tracker app. Winter storms offer a useful comparison with those mostly dry summer days.