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      Gale Warning
      until 3:00 PM PST
      +2 more alerts
      Elev undefined ft, undefined °undefined undefined °undefined

      Castro Valley, CA

      Station53°
      Sat, Nov 21, 2026
      Saturday
      Sun 11/22
      High 61°f
      24% Precip. / 0 in
      Partly cloudy. High 61F. Winds N at 5 to 10 mph.
      Saturday night
      Sun 11/22
      Low 45°f
      37% Precip. / 0.2 in
      Overcast with rain showers at times. Low near 45F. Winds E at 5 to 10 mph. Chance of rain 40%.
      Sunrise 6:54 AM
      Sunset 4:53 PM
      Moonrise 2:43 PM
      Moonset 3:33 AM
      Waxing Gibbous, 90% visible
      Hourly Forecast
      12AM
      46°
      1AM
      45°
      2AM
      45°
      3AM
      44°
      4AM
      44°
      5AM
      44°
      6AM
      44°
      6:54AM
      Sunrise
      7AM
      44°
      8AM
      46°
      9AM
      50°
      10AM
      52°
      11AM
      54°
      12PM
      56°
      1PM
      58°
      2PM
      59°
      3PM
      59°
      4PM
      58°
      4:53PM
      Sunset
      5PM
      56°
      6PM
      54°
      7PM
      53°
      8PM
      52°
      9PM
      51°
      10PM
      34%
      50°
      11PM
      35%
      49°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Partly Cloudy
      		 46°F 44°F 18% 0in 31% 42°F 84% 4 mph E 30.06in
      1:00 am
      Partly Cloudy
      		 45°F 43°F 21% 0in 35% 41°F 84% 5 mph ENE 30.06in
      2:00 am
      Partly Cloudy
      		 45°F 42°F 21% 0in 38% 40°F 84% 5 mph ENE 30.06in
      3:00 am
      Partly Cloudy
      		 44°F 41°F 21% 0in 41% 40°F 87% 5 mph ENE 30.06in
      4:00 am
      Partly Cloudy
      		 44°F 41°F 24% 0in 42% 40°F 87% 5 mph ENE 30.06in
      5:00 am
      Partly Cloudy
      		 44°F 41°F 23% 0in 42% 40°F 88% 5 mph ENE 30.07in
      6:00 am
      Partly Cloudy
      		 44°F 41°F 22% 0in 41% 41°F 90% 4 mph ENE 30.07in
      7:00 am
      Partly Cloudy
      		 44°F 41°F 18% 0in 40% 41°F 90% 4 mph E 30.08in
      8:00 am
      Partly Cloudy
      		 46°F 44°F 17% 0in 38% 43°F 87% 4 mph E 30.09in
      9:00 am
      Partly Cloudy
      		 50°F 48°F 16% 0in 37% 44°F 81% 4 mph E 30.09in
      10:00 am
      Partly Cloudy
      		 52°F 51°F 18% 0in 36% 45°F 77% 5 mph ESE 30.1in
      11:00 am
      Partly Cloudy
      		 54°F 53°F 18% 0in 37% 46°F 73% 6 mph NW 30.09in
      12:00 pm
      Partly Cloudy
      		 56°F 55°F 19% 0in 40% 45°F 68% 7 mph NW 30.08in
      1:00 pm
      Partly Cloudy
      		 58°F 57°F 19% 0in 43% 45°F 64% 7 mph NW 30.06in
      2:00 pm
      Partly Cloudy
      		 59°F 58°F 20% 0in 46% 45°F 61% 7 mph NW 30.05in
      3:00 pm
      Partly Cloudy
      		 59°F 58°F 20% 0in 49% 45°F 60% 7 mph NNW 30.04in
      4:00 pm
      Partly Cloudy
      		 58°F 57°F 24% 0in 53% 46°F 63% 7 mph NNW 30.04in
      5:00 pm
      Partly Cloudy
      		 56°F 55°F 24% 0in 55% 45°F 67% 6 mph N 30.01in
      6:00 pm
      Partly Cloudy
      		 54°F 53°F 24% 0in 55% 45°F 73% 4 mph NNE 30.01in
      7:00 pm
      Partly Cloudy
      		 53°F 52°F 24% 0in 55% 45°F 76% 4 mph NE 30.01in
      8:00 pm
      Partly Cloudy
      		 52°F 51°F 24% 0in 57% 44°F 76% 4 mph ENE 30.01in
      9:00 pm
      Mostly Cloudy
      		 51°F 49°F 24% 0in 62% 44°F 77% 5 mph E 30.01in
      10:00 pm
      Few Showers
      		 50°F 48°F 34% 0.02in 66% 43°F 79% 5 mph E 30.01in
      11:00 pm
      Showers
      		 49°F 47°F 35% 0.03in 69% 43°F 80% 6 mph E 30.01in
      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 50°F 48°F 34°F 1948
      5. Rain/Snow Depth
      6. Precipitation 0.01 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 52°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
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