National Weather Service Forecast for: Castro Valley, CAIssued by: National Weather Service San Francisco Bay Area/Monterey, CA |
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| Updated: Sat, 08-Nov-2025 1:09am PST | ||||||||||||||||||||||||||||||||||||||||
| Castro Valley/Hayward | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 53. East northeast wind around 1 mph. |
| Saturday |
Mostly sunny. High near 76, with temperatures falling to around 72 in the afternoon. North wind 1 to 6 mph. |
| Saturday Night |
Partly cloudy, with a low around 56. East northeast wind around 3 mph. |
| Sunday |
Mostly sunny, with a high near 81. Northeast wind around 6 mph. |
| Sunday Night |
Partly cloudy, with a low around 58. Northeast wind around 3 mph. |
| Monday |
Mostly sunny, with a high near 81. |
| Monday Night |
Partly cloudy, with a low around 57. |
| Veterans Day |
Mostly sunny, with a high near 78. |
| Tuesday Night |
Mostly cloudy, with a low around 57. |
| Wednesday |
A chance of rain after 10am. Mostly cloudy, with a high near 71. |
| Wednesday Night |
Rain. Mostly cloudy, with a low around 58. |
| Thursday |
Rain. Mostly cloudy, with a high near 65. |
| Thursday Night |
Rain likely. Mostly cloudy, with a low around 54. |
| Friday |
Rain likely. Mostly cloudy, with a high near 64. |
Forecast from NOAA-NWS for Castro Valley, CA.
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