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      Coastal Flood Advisory
      until 6:00 PM PDT
      Elev undefined ft, undefined °undefined undefined °undefined

      Castro Valley, CA

      Station70°
      Wed, Oct 28, 2026
      Tonight
      Thu 10/29
      Low 49°f
      5% Precip. / 0 in
      Partly cloudy skies early will give way to cloudy skies late. Low 49F. Winds NNE at 5 to 10 mph.
      Tomorrow
      Fri 10/30
      High 69°f
      4% Precip. / 0 in
      Overcast. High 69F. Winds W at 5 to 10 mph.
      Sunrise 7:29 AM
      Sunset 6:14 PM
      Moonrise 8:01 PM
      Moonset 10:42 AM
      Waning Gibbous, 88% visible
      Hourly Forecast
      Now
      70°
      5PM
      69°
      6PM
      66°
      6:14PM
      Sunset
      7PM
      61°
      8PM
      57°
      9PM
      56°
      10PM
      55°
      11PM
      53°
      12AM
      52°
      1AM
      52°
      2AM
      51°
      3AM
      51°
      4AM
      50°
      5AM
      50°
      6AM
      50°
      7AM
      50°
      7:30AM
      Sunrise
      8AM
      50°
      9AM
      54°
      10AM
      58°
      11AM
      61°
      12PM
      63°
      1PM
      65°
      2PM
      67°
      3PM
      67°
      4PM
      67°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      5:00 pm
      Sunny
      		 69°F 69°F 0% 0in 7% 45°F 42% 9 mph WNW 29.96in
      6:00 pm
      Mostly Sunny
      		 66°F 66°F 1% 0in 29% 45°F 48% 8 mph NW 29.96in
      7:00 pm
      Partly Cloudy
      		 61°F 61°F 1% 0in 30% 46°F 57% 5 mph NW 29.98in
      8:00 pm
      Partly Cloudy
      		 57°F 57°F 2% 0in 41% 47°F 67% 3 mph NW 29.98in
      9:00 pm
      Mostly Cloudy
      		 56°F 56°F 2% 0in 60% 47°F 72% 3 mph NW 29.99in
      10:00 pm
      Mostly Cloudy
      		 55°F 55°F 2% 0in 65% 47°F 74% 3 mph N 29.98in
      11:00 pm
      Mostly Cloudy
      		 53°F 53°F 2% 0in 70% 46°F 76% 3 mph ENE 29.98in
      Additional Conditions
      1. Pressure 29.96 in
      2. Visibility 9 miles
      3. Clouds Partly Cloudy
      4. Dew Point44°F
      5. Humidity 39%
      6. Rainfall 0 in
      7. Snow Depth 0 in
       KHWD Station History
      Almanac for October 28, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 71°F 71°F 90°F 2019
      4. Low 46°F 52°F 34°F 1946
      5. Rain/Snow Depth
      6. Precipitation 0 in 4.2 in -
      7. Snow 0 in 0 in -
      Almanac for October 29, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 69°F 70°F 89°F
      4. Low 49°F 51°F 33°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 7:29 AM 6:14 PM
      3. Civil Twilight 7:02 AM 6:40 PM
      4. Nautical Twilight 6:31 AM 7:11PM
      5. Astronomical Twilight 6:01 AM 7:42 PM
      1. Length of Visible Light 11h 38m
      2. Length of Day 10h 44m
      3. Tomorrow will be 2 minutes 10 seconds shorter
      1. Moon 8:01 PM 10:42 AM
      2. Waning Gibbous88% of the Moon is Illuminated
      Nov 1
      Waning Half Last Qtr
      Nov 8
      New Moon
      Nov 17
      Waxing Half First Qtr
      Nov 24
      Full Moon
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