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      Coastal Flood Advisory
      until 4:00 PM PST
      Elev 433 ft, 37.714 °N 122.061 °W

      Castro Valley, CA

      Ridges Station57°
      Tue, Nov 17, 2026
      Tuesday
      Wed 11/18
      High 61°f
      24% Precip. / 0 in
      Partly to mostly cloudy. High 61F. Winds W at 5 to 10 mph.
      Tuesday night
      Wed 11/18
      Low 47°f
      43% Precip. / 0.09 in
      Partly cloudy skies early followed by increasing clouds with showers developing later at night. Low 47F. Winds ESE at 5 to 10 mph. Chance of rain 40%.
      Sunrise 6:50 AM
      Sunset 4:55 PM
      Moonrise 1:03 PM
      Moonset -
      First Quarter, 53% visible
      Hourly Forecast
      12AM
      48°
      1AM
      47°
      2AM
      47°
      3AM
      46°
      4AM
      46°
      5AM
      45°
      6AM
      45°
      6:50AM
      Sunrise
      7AM
      45°
      8AM
      48°
      9AM
      51°
      10AM
      54°
      11AM
      56°
      12PM
      57°
      1PM
      59°
      2PM
      59°
      3PM
      60°
      4PM
      59°
      4:55PM
      Sunset
      5PM
      57°
      6PM
      54°
      7PM
      53°
      8PM
      52°
      9PM
      52°
      10PM
      51°
      11PM
      50°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Mostly Clear
      		 48°F 46°F 13% 0in 23% 43°F 83% 5 mph NE 30.03in
      1:00 am
      Mostly Clear
      		 47°F 45°F 12% 0in 24% 42°F 83% 5 mph NE 30.03in
      2:00 am
      Mostly Clear
      		 47°F 44°F 12% 0in 25% 42°F 84% 5 mph NE 30.03in
      3:00 am
      Mostly Clear
      		 46°F 44°F 12% 0in 26% 42°F 85% 4 mph ENE 30.04in
      4:00 am
      Mostly Clear
      		 46°F 43°F 16% 0in 28% 41°F 85% 4 mph NE 30.04in
      5:00 am
      Partly Cloudy
      		 45°F 43°F 15% 0in 32% 41°F 85% 4 mph ENE 30.04in
      6:00 am
      Partly Cloudy
      		 45°F 43°F 14% 0in 38% 41°F 87% 4 mph ENE 30.05in
      7:00 am
      Partly Cloudy
      		 45°F 43°F 13% 0in 44% 41°F 87% 4 mph E 30.05in
      8:00 am
      Partly Cloudy
      		 48°F 46°F 12% 0in 50% 43°F 82% 4 mph ESE 30.06in
      9:00 am
      Partly Cloudy
      		 51°F 50°F 10% 0in 55% 44°F 78% 5 mph S 30.07in
      10:00 am
      Partly Cloudy
      		 54°F 53°F 23% 0in 59% 45°F 72% 5 mph SW 30.07in
      11:00 am
      Mostly Cloudy
      		 56°F 54°F 23% 0in 61% 46°F 69% 6 mph WSW 30.06in
      12:00 pm
      Mostly Cloudy
      		 57°F 56°F 23% 0in 64% 45°F 65% 7 mph WSW 30.05in
      1:00 pm
      Mostly Cloudy
      		 59°F 57°F 24% 0in 65% 45°F 62% 8 mph W 30.03in
      2:00 pm
      Mostly Cloudy
      		 59°F 58°F 24% 0in 66% 45°F 59% 8 mph W 30.02in
      3:00 pm
      Mostly Cloudy
      		 60°F 58°F 24% 0in 65% 45°F 59% 8 mph WNW 30.01in
      4:00 pm
      Mostly Cloudy
      		 59°F 57°F 22% 0in 64% 46°F 63% 8 mph WNW 30in
      5:00 pm
      Mostly Cloudy
      		 57°F 55°F 22% 0in 69% 45°F 64% 7 mph WNW 30.03in
      6:00 pm
      Mostly Cloudy
      		 54°F 53°F 23% 0in 63% 45°F 70% 5 mph WNW 30.03in
      7:00 pm
      Partly Cloudy
      		 53°F 52°F 24% 0in 58% 45°F 73% 4 mph NNW 30.04in
      8:00 pm
      Partly Cloudy
      		 52°F 51°F 24% 0in 56% 45°F 76% 4 mph ESE 30.04in
      9:00 pm
      Partly Cloudy
      		 52°F 50°F 24% 0in 55% 45°F 77% 6 mph ESE 30.04in
      10:00 pm
      Partly Cloudy
      		 51°F 49°F 24% 0in 56% 44°F 78% 6 mph ESE 30.03in
      11:00 pm
      Partly Cloudy
      		 50°F 48°F 24% 0in 59% 44°F 79% 7 mph ESE 30.03in
      Additional Conditions
      1. Pressure 30.16 in
      2. Visibility 8 miles
      3. Clouds Cloudy
      4. Dew Point52°F
      5. Humidity 87%
      6. Rainfall 0 in
      7. Snow Depth 0 in
       KHWD Station History
      Almanac for November 8, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 71°F 67°F 82°F 1955
      4. Low 51°F 49°F 35°F 1947
      5. Rain/Snow Depth
      6. Precipitation 0 in 4.7 in -
      7. Snow 0 in 0.1 in -
      Almanac for November 9, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 72°F 67°F 82°F
      4. Low 51°F 49°F 34°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:41 AM 5:02 PM
      3. Civil Twilight 6:13 AM 5:30 PM
      4. Nautical Twilight 5:42 AM 6:01PM
      5. Astronomical Twilight 5:11 AM 6:32 PM
      1. Length of Visible Light 11h 16m
      2. Length of Day 10h 21m
      3. Tomorrow will be 1 minute 58 seconds shorter
      1. Moon 6:15 AM 4:25 PM
      2. New0% of the Moon is Illuminated
      Nov 8
      New Moon
      Nov 17
      Waxing Half First Qtr
      Nov 24
      Full Moon
      Nov 30
      Waning Half Last Qtr
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