, °F

Personalized Forecasts

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    My Recent Locations

    • Today

      Dec 8

      60° /55°F
      Mostly cloudy, a little rain
      • Poor
      • for stargazing
      • Cloud Cover: 94%
      • Precip: 60%
      • Hours of Precip: 3.5
    • Fri

      Dec 9

      63° /57°
      A brief shower or two
      • Poor
      • for stargazing
      • Cloud Cover: 94%
      • Precip: 75%
      • Hours of Precip: 3
      More
    • Sat

      Dec 10

      61° /45°
      Mostly cloudy, brief showers
      • Poor
      • for stargazing
      • Cloud Cover: 96%
      • Precip: 25%
      • Hours of Precip: 3.5
      More
    • Sun

      Dec 11

      56° /45°
      Periods of clouds and sun
      • Poor
      • for stargazing
      • Cloud Cover: 73%
      • Precip: 9%
      • Hours of Precip: 0
      More
    • Mon

      Dec 12

      57° /46°
      Mostly cloudy
      • Poor
      • for stargazing
      • Cloud Cover: 81%
      • Precip: 40%
      • Hours of Precip: 0.5
      More
    Thursday
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    6am
    Forecast Cloudy Cloudy Cloudy Showers Cloudy Showers Cloudy Cloudy
    Temp (°F) 57° 56° 56° 56° 56° 56° 56° 55°
    RealFeel® 55° 55° 55° 53° 56° 54° 55° 54°
    Wind (mph) 6 S 6 SSW 5 SSW 5 SSW 5 S 5 S 5 S 5 S
    precip
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    6am
    Rain
    34%
    37%
    47%
    51%
    43%
    51%
    47%
    45%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    6am
    UV Index 0 0 0 0 0 0 0 0
    Cloud Cover 94% 94% 94% 94% 94% 94% 94% 94%
    Humidity 87% 88% 89% 90% 91% 92% 92% 94%
    Dew Point 53° 53° 53° 53° 54° 54° 54° 53°
    Temp °F
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    6am
    60° 55°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 12/8/2015
    High 60° 58° N/A 61°
    Low 55° 42° N/A 49°

    Sunrise/Sunset

    • Sunrise: 7:12 AM
    • Sunset: 4:50 PM
    • Duration: 9:38 hr

    Moonrise/Moonset

    • Moonrise: 1:24 PM
    • Moonset: 1:58 AM
    • Duration: 12:34 hr
    Astronomy

    Solunar Information for Castro Valley, CA

    Wed, Dec 14
    Full
    Wed, Dec 21
    Last
    Thu, Dec 29
    New
    Thu, Jan 5
    First

    Thu. Stargazing