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Port Costa, CA Hourly Weather Forecast

Next 12 Hours

Wed, Sep 23rd
Clear conditions expected later. Temps range from 68° to 73°. Light winds from the SW at 3.4 mph, as humidity fluctuates between 48% to 56%, and an avg barometric pressure of 29.86 inHg.

Overnight into morning Thu, Sep 24th
A full day of Clear conditions is expected. Temps range from 63° to 68°. Calm winds from the SW at 2.8 mph, as humidity ranges 57% to 68%, and an avg barometric pressure of 29.86 inHg.

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