, °F

Personalized Forecasts

Featured Forecast

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    My Recent Locations

    • Today

      Jan 16

      57° /38°F
      Mostly sunny
      • Good
      • for stargazing
      • Cloud Cover: 26%
      • Precip: 0%
      • Hours of Precip: 0
    • Tue

      Jan 17

      58° /47°
      Partly sunny
      • Poor
      • for stargazing
      • Cloud Cover: 93%
      • Precip: 55%
      • Hours of Precip: 1
      More
    • Wed

      Jan 18

      55° /48°
      Rain, becoming heavy
      • Poor
      • for stargazing
      • Cloud Cover: 95%
      • Precip: 86%
      • Hours of Precip: 20
      More
    • Thu

      Jan 19

      58° /50°
      Periods of rain
      • Poor
      • for stargazing
      • Cloud Cover: 96%
      • Precip: 89%
      • Hours of Precip: 11
      More
    • Fri

      Jan 20

      54° /45°
      Rain
      • Poor
      • for stargazing
      • Cloud Cover: 85%
      • Precip: 68%
      • Hours of Precip: 17
      More
    Monday
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    Forecast Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
    Temp (°F) 47° 51° 53° 55° 56° 57° 56° 53°
    RealFeel® 49° 54° 57° 57° 58° 57° 55° 52°
    Wind (mph) 6 E 6 E 6 ENE 6 ENE 6 NE 6 NE 6 NNE 6 NNE
    precip
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    Rain
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    UV Index 2 2 3 2 2 1 0 0
    Cloud Cover 23% 11% 11% 11% 11% 11% 11% 11%
    Humidity 65% 60% 55% 53% 52% 53% 55% 61%
    Dew Point 36° 37° 37° 38° 39° 40° 40° 40°
    Temp °F
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    60° 55° 50° 45°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 1/16/2016
    High 57° 57° N/A 59°
    Low 38° 42° N/A 49°

    Sunrise/Sunset

    • Sunrise: 7:22 AM
    • Sunset: 5:15 PM
    • Duration: 9:53 hr

    Moonrise/Moonset

    • Moonrise: 10:06 PM
    • Moonset: 10:39 AM
    • Duration: 12:33 hr
    Astronomy

    Solunar Information for Castro Valley, CA

    Thu, Jan 19
    Last
    Sat, Jan 28
    New
    Sat, Feb 4
    First
    Sat, Feb 11
    Full

    Mon. Stargazing