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      Castro Valley, CA

      Thu, Oct 29, 2026
      Tomorrow
      Fri 10/30
      High 69°f
      3% Precip. / 0 in
      Cloudy skies. High 69F. Winds W at 5 to 10 mph.
      Tomorrow night
      Fri 10/30
      Low 51°f
      9% Precip. / 0 in
      Considerable cloudiness. Low 51F. Winds SW at 5 to 10 mph.
      Sunrise 7:30 AM
      Sunset 6:12 PM
      Moonrise 9:05 PM
      Moonset 11:51 AM
      Waning Gibbous, 79% visible
      Hourly Forecast
      12AM
      52°
      1AM
      52°
      2AM
      52°
      3AM
      51°
      4AM
      51°
      5AM
      51°
      6AM
      50°
      7AM
      50°
      7:30AM
      Sunrise
      8AM
      50°
      9AM
      54°
      10AM
      58°
      11AM
      61°
      12PM
      64°
      1PM
      66°
      2PM
      67°
      3PM
      67°
      4PM
      67°
      5PM
      67°
      6PM
      65°
      6:13PM
      Sunset
      7PM
      62°
      8PM
      60°
      9PM
      59°
      10PM
      58°
      11PM
      57°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Mostly Cloudy
      52°F 52°F 2% 0in 71% 45°F 74% 3 mph E 29.96in
      1:00 am
      Mostly Cloudy
      52°F 52°F 2% 0in 64% 44°F 75% 3 mph ENE 29.96in
      2:00 am
      Mostly Cloudy
      52°F 50°F 5% 0in 70% 44°F 76% 4 mph E 29.95in
      3:00 am
      Mostly Cloudy
      51°F 50°F 5% 0in 79% 44°F 76% 4 mph E 29.94in
      4:00 am
      Mostly Cloudy
      51°F 50°F 5% 0in 71% 44°F 77% 3 mph E 29.93in
      5:00 am
      Mostly Cloudy
      51°F 50°F 4% 0in 67% 43°F 75% 4 mph ENE 29.92in
      6:00 am
      Mostly Cloudy
      50°F 49°F 4% 0in 68% 43°F 75% 4 mph ENE 29.92in
      7:00 am
      Cloudy
      50°F 50°F 4% 0in 93% 43°F 76% 3 mph ENE 29.92in
      8:00 am
      Cloudy
      50°F 50°F 4% 0in 90% 43°F 76% 3 mph E 29.92in
      9:00 am
      Cloudy
      54°F 54°F 1% 0in 84% 43°F 66% 2 mph E 29.92in
      10:00 am
      Cloudy
      58°F 58°F 0% 0in 86% 44°F 59% 3 mph SSW 29.92in
      11:00 am
      Cloudy
      61°F 61°F 0% 0in 80% 44°F 53% 3 mph WSW 29.91in
      12:00 pm
      Cloudy
      64°F 64°F 0% 0in 86% 43°F 48% 3 mph WSW 29.9in
      1:00 pm
      Cloudy
      66°F 66°F 0% 0in 83% 43°F 44% 5 mph WSW 29.88in
      2:00 pm
      Cloudy
      67°F 67°F 0% 0in 91% 42°F 41% 6 mph W 29.87in
      3:00 pm
      Cloudy
      67°F 67°F 0% 0in 84% 41°F 39% 6 mph W 29.85in
      4:00 pm
      Cloudy
      67°F 67°F 0% 0in 84% 43°F 42% 7 mph WNW 29.84in
      5:00 pm
      Cloudy
      67°F 67°F 0% 0in 88% 46°F 47% 9 mph WNW 29.84in
      6:00 pm
      Cloudy
      65°F 65°F 0% 0in 94% 48°F 54% 8 mph WNW 29.84in
      7:00 pm
      Cloudy
      62°F 62°F 2% 0in 95% 49°F 63% 6 mph WNW 29.85in
      8:00 pm
      Cloudy
      60°F 60°F 4% 0in 84% 50°F 69% 5 mph WNW 29.86in
      9:00 pm
      Cloudy
      59°F 59°F 5% 0in 82% 50°F 72% 4 mph W 29.86in
      10:00 pm
      Cloudy
      58°F 58°F 5% 0in 82% 50°F 75% 4 mph W 29.87in
      11:00 pm
      Cloudy
      57°F 57°F 6% 0in 91% 50°F 77% 4 mph W 29.87in
      Additional Conditions
      1. Pressure 29.97 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point46°F
      5. Humidity 58%
      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 47°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
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
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      Level Access
      Glossary