Port Costa, CA

Current conditions, hourly and 7-day forecast, and live radar for Port Costa, CA 94569. Right now: partly cloudy, 67°F. Data from the National Weather Service.

• Tonight: Partly cloudy. Low around 67, with temperatures rising to around 69 overnight. West southwest wind 6 to 9 mph.
• Thursday: Mostly sunny. High near 88, with temperatures falling to around 85 in the afternoon. West southwest wind 9 to 14 mph, with gusts as high as 21 mph.
• Thursday Night: Partly cloudy, with a low around 60. Southwest wind around 16 mph, with gusts as high as 25 mph.
• Friday: Sunny, with a high near 79. Southwest wind around 16 mph, with gusts as high as 25 mph.
• Friday Night: Mostly clear, with a low around 58. Southwest wind around 15 mph, with gusts as high as 25 mph.
• Saturday: Sunny, with a high near 75.