Log In
    Favorites
        Member Settings
      Gale Warning
      until 3:00 PM PST
      +2 more alerts
      Elev undefined ft, undefined °undefined undefined °undefined

      Castro Valley, CA

      Station53°
      Updated: 7:37 AM PST on November 12, 2026 (GMT -8)
      1 minute ago
      71°
      52°
      53
      Feels Like 53
      Sunny
      N
      3
      Lower temperature is expected today
      Wundermap

      Loading nearby stations…

       Wundermap
      50
      50
      575
      90
      50
      7
      0 mph

      See the forecast street by street.

      Temperature, dewpoint and wind modeled down to the neighborhood.

      Go Premium
      50
      50
      50
      50
      50
      50
      Now
      Radar debug
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Fri 11/13
        High 71°f
         3% Precip. / 0 in
        Sunshine and a few clouds. High 71F. Winds SSW at 10 to 20 mph.
        Tonight
        Fri 11/13
        Low 57°f
         24% Precip. / 0 in
        Partly cloudy skies early will give way to cloudy skies late. Low 57F. Winds SSE at 10 to 15 mph.
        Tomorrow
        Sat 11/14
        High 60°f49°f
         100% Precip. / 0.65 in
        Periods of rain. Potential for heavy rainfall. High around 60F. Winds SW at 15 to 25 mph. Chance of rain 100%. Rainfall around a half an inch.
        Hourly Forecast
        Now
        53°
        8AM
        55°
        9AM
        60°
        10AM
        63°
        11AM
        67°
        12PM
        68°
        1PM
        69°
        2PM
        70°
        3PM
        69°
        4PM
        67°
        4:59PM
        Sunset
        5PM
        65°
        6PM
        64°
        7PM
        62°
        8PM
        61°
        9PM
        61°
        10PM
        60°
        11PM
        60°
        12AM
        59°
        1AM
        59°
        2AM
        59°
        3AM
        59°
        4AM
        58°
        5AM
        58°
        6AM
        33%
        58°
        6:46AM
        Sunrise
        7AM
        41%
        58°
        Precipitation
        41%
        Pollen
        None
        Air Quality
        71
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.91 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point46°F
        5. Humidity 77%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KHWD Station History
        Almanac for November 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 71°F 66°F 75°F 1995
        4. Low 52°F 48°F 34°F 1948
        5. Rain/Snow Depth
        6. Precipitation 0 in 4.8 in -
        7. Snow 0 in 0.1 in -
        Almanac for November 13, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 60°F 66°F 77°F
        4. Low 53°F 48°F 33°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:45 AM 4:59 PM
        3. Civil Twilight 6:17 AM 5:27 PM
        4. Nautical Twilight 5:46 AM 5:58PM
        5. Astronomical Twilight 5:15 AM 6:29 PM
        1. Length of Visible Light 11h 9m
        2. Length of Day 10h 13m
        3. Tomorrow will be 1 minute 50 seconds shorter
        1. Moon 10:11 AM 7:19 PM
        2. Waxing Crescent11% of the Moon is Illuminated
        Nov 17
        Waxing Half First Qtr
        Nov 24
        Full Moon
        Nov 30
        Waning Half Last Qtr
        Dec 8
        New Moon
        Nearby Weather Stations
        Station Location
        Temp
        Windchill
        Heat Index
        Dew Point
        Humidity
        Wind
        Precip.
        Elev.
        Updated
        Loading nearby stations…
        Precipitation
        Loading…
        Health
        Loading…
        Weather Alerts
        Loading…
        Our AppsAbout UsContactCareers
        PWS NetworkWunderMap
        Trust CenterTerms of UsePrivacy PolicyData RightsPrivacy SettingsCookie NoticeData VendorsAccessibility Statement
        Level Access
        The Weather Company The Weather Channel Weather Underground Storm Radar
        © The Weather Company, LLC 2026
        Glossary