National Weather Service Forecast for:
Castro Valley CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA |
||||||||||||||||||
Updated: 1:26 pm PDT Jul 4, 2025 | ||||||||||||||||||
|
Tonight |
Increasing clouds, with a low around 53. West southwest wind 6 to 11 mph. |
Saturday |
Mostly cloudy, then gradually becoming sunny, with a high near 68. West wind 7 to 11 mph. |
Saturday Night |
Increasing clouds, with a low around 53. West southwest wind 6 to 9 mph. |
Sunday |
Mostly cloudy through mid morning, then gradual clearing, with a high near 74. West southwest wind 5 to 10 mph. |
Sunday Night |
Partly cloudy, with a low around 54. West northwest wind 5 to 10 mph. |
Monday |
Mostly sunny, with a high near 75. |
Monday Night |
Partly cloudy, with a low around 56. |
Tuesday |
Mostly sunny, with a high near 74. |
Tuesday Night |
Partly cloudy, with a low around 56. |
Wednesday |
Mostly sunny, with a high near 79. |
Wednesday Night |
Mostly clear, with a low around 56. |
Thursday |
Sunny, with a high near 84. |
Thursday Night |
Mostly clear, with a low around 57. |
Friday |
Sunny, with a high near 81. |
Forecast from NOAA-NWS for Castro Valley CA.