Castro Valley, California Weather
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Weather Forecast for Castro Valley, California : Alameda County
Issued: 1:26 pm PDT Jul 2, 2025 Latitude: 37.6940973 Longitude: -122.0863522 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Independence Day Saturday Sunday Monday Tuesday Wednesday
20% chance of rain on Tonight 20% chance of rain on Thursday Partly Sunny on Independence Day Mostly Sunny on Saturday Sunny on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday
Low: 55°F High: 71°F High: 68°F High: 74°F High: 76°F High: 78°F High: 77°F High: 78°F
Low: 54°F Low: 53°F Low: 54°F Low: 55°F Low: 56°F Low: 56°F  
Rain Rain Partly Sunny Mostly Sunny Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
HAYWARD - (KHWD)
70°
Clear
as of 2:54 PM PDST
Rel. Humidity: 60%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Wind Data
14 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
OAKLAND - (KOAK)
66°
Mostly Clear
as of 2:53 PM PDST
Rel. Humidity: 63%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
18 MPH
290° West
Cloud Level(s): Few at 500ft, Few at 5000ft
Current Conditions at
LIVERMORE - (KLVK)
88°
Clear
as of 2:53 PM PDST
Rel. Humidity: 33%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: VFR
Wind Data
15 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
SAN CARLOS - (KSQL)
73°
Clear
as of 2:47 PM PDST
Rel. Humidity: 49%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
17 MPH
290° West
Cloud Level(s): Clear
20% chance of rain Tonight Tonight... A slight chance of drizzle between 8pm and 11pm, then a slight chance of rain after 11pm. Partly cloudy, with a low around 55. Southwest wind 6 to 10 mph. Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch possible.
20% chance of rain Thursday Thursday... A 20 percent chance of rain before 8am. Partly sunny, with a high near 71. West southwest wind 6 to 13 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 54. West southwest wind 8 to 10 mph.
Partly Sunny on Independence Day Independence Day... Partly sunny, then gradually becoming sunny, with a high near 68. West wind 8 to 11 mph.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 53. Southwest wind 6 to 11 mph.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 74.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 54.
Sunny on Sunday Sunday... Sunny, with a high near 76.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 55.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 78.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 56.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 77.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 56.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 78.
Current Radar Image


Sun Almanac for Castro Valley, California
Sunrise: 05:51 AM
Sunset: 8:34 PM
Civil Sunrise:05:20 AM
Civil Sunset: 9:05 PM
Nautical Sunrise: 04:41 AM
Nautical Sunset: 9:44 PM
Astro Sunrise: 03:58 AM
Astro Sunset: 10:27 PM
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