Port Costa, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
Main Menu
10 Day Forecast
  • Forecast night icon
    Night
    Rain
    51°
    Friday 5/3
    Forecast night icon
    51°
    Rain
    Hourly
    Night Details
    Partly cloudy late in the evening. Rain after midnight. Lows in the lower 50s. Southwest winds 10 to 20 mph.
  • Forecast day icon
    Saturday
    Rain
    52°
    Forecast night icon
    Night
    Partly Cloudy
    44°
    Saturday 5/4
    Day
    52°
    Rain
    Forecast day icon
    Night
    44°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Rain. Highs in the upper 50s. Southwest winds 10 to 20 mph.
    Night Details
    Partly cloudy in the evening then becoming mostly clear. Lows in the mid 40s. West winds 10 to 20 mph.
  • Forecast day icon
    Sunday
    Sunny
    55°
    Forecast night icon
    Night
    Mostly Clear
    45°
    Sunday 5/5
    Day
    55°
    Sunny
    Forecast day icon
    Night
    45°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 60s. West winds around 10 mph.
    Night Details
    Mostly clear. Lows in the mid 40s. West winds 5 to 15 mph.
  • Forecast day icon
    Monday
    Sunny
    57°
    Forecast night icon
    Night
    Mostly Clear
    47°
    Monday 5/6
    Day
    57°
    Sunny
    Forecast day icon
    Night
    47°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 60s to lower 70s.
    Night Details
    Mostly clear. Lows in the upper 40s. Highs in the lower 70s.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    63°
    Forecast night icon
    Night
    Clear
    48°
    Tuesday 5/7
    Day
    63°
    Mostly Sunny
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the upper 40s. Highs in the lower 70s.
    Night Details
    Clear. Lows in the upper 40s to mid 50s. Highs in the lower 80s.
  • Forecast day icon
    Wednesday
    Sunny
    69°
    Forecast night icon
    Night
    Clear
    53°
    Wednesday 5/8
    Day
    69°
    Sunny
    Forecast day icon
    Night
    53°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Clear. Lows in the upper 40s to mid 50s. Highs in the lower 80s.
    Night Details
    Clear. Lows in the upper 40s to mid 50s. Highs in the lower 80s.
  • Forecast day icon
    Thursday
    Sunny
    77°
    Forecast night icon
    Night
    Clear
    54°
    Thursday 5/9
    Day
    77°
    Sunny
    Forecast day icon
    Night
    54°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Clear. Lows in the upper 40s to mid 50s. Highs in the lower 80s.
    Night Details
    Clear. Lows in the upper 40s to mid 50s. Highs in the lower 80s.
  • Forecast day icon
    Friday
    Sunny
    77°
    Forecast night icon
    Night
    Clear
    56°
    Friday 5/10
    Day
    77°
    Sunny
    Forecast day icon
    Night
    56°
    Clear
    Forecast night icon
    Day Details
    Sunny. Highs in the mid 80s.
    Night Details
    Clear. Low temperature around 56F. Dew point will be around 47F with an average humidity of 59%. Winds will be 7 mph from the W.
  • Forecast day icon
    Saturday
    Sunny
    73°
    Forecast night icon
    Night
    Clear
    55°
    Saturday 5/11
    Day
    73°
    Sunny
    Forecast day icon
    Night
    55°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 73F. Dew point will be around 52F with an average humidity of 56%. Winds will be 6 mph from the W.
    Night Details
    Clear. Low temperature around 55F. Dew point will be around 48F with an average humidity of 64%. Winds will be 10 mph from the W.
  • Forecast day icon
    Sunday
    Sunny
    67°
    Forecast night icon
    Night
    Clear
    52°
    Sunday 5/12
    Day
    67°
    Sunny
    Forecast day icon
    Night
    52°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 67F. Dew point will be around 51F with an average humidity of 63%. Winds will be 9 mph from the W.
    Night Details
    Clear. Low temperature around 52F. Dew point will be around 48F with an average humidity of 72%. Winds will be 11 mph from the W.