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Weather for Port Costa, CAPort Costa, CA Weather & Current Conditions

94569 Weather (Port Costa, CA)

Port Costa, CA WeatherCurrent Conditions and Weather for Port Costa, California
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Overcast at Port Costa (94569), temperature is 56°F13°C, dew point 53°F12°C, humidity 90%. Wind direction is VRB at 3 mphat 5 km/h with visibility of 10 mi16 km. Barometric pressure is 30.04 in1017 mb. Last update: 6:42 pm.*
*Time is approximately 6:42 pm Tue, Nov 03, 2026. Time will be within 15 minutes of current local time. Port Costa weather forecast data is updated every 15 minutes.

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Port Costa CA Weather - 9:42 pm

Port Costa Weather Forecast

Weather forecast for: 15NM NNE Oakland CA
Last Update: 2:21 pm PST Nov 3, 2026
Tonight: ENE wind 5 to 7 kt. Rain likely, mainly before 8pm.
Wednesday: Variable winds less than 5 kt becoming W around 6 kt in the afternoon. Sunny.
Wednesday Night: Variable winds 5 kt or less. Partly cloudy.
Thursday: Variable winds 5 kt or less. Sunny.
Thursday Night: Variable winds 5 kt or less. Mostly clear.
Friday: Variable winds 5 kt or less. Sunny.
Friday Night: Variable winds 5 kt or less. Clear.
Saturday: Variable winds less than 5 kt becoming ENE 5 to 7 kt in the morning. Sunny.
Saturday Night: Variable winds 5 kt or less. Mostly clear.
Marine Point Forecast: 38.06°N 122.2°W

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