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  1. Castro Valley, CA

    Sunny, 11:40 AM

    Sunny
    18
    • Precipitation: 42%
    • Humidity: 71%
    • Wind: 6 km/h
    • 2322181513131427

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  1. Be prepared with the most accurate 10-day forecast for Castro Valley, CA with highs, lows, chance of precipitation from The Weather Channel and Weather.com.

  2. Get the current weather conditions and the 10-day outlook for Castro Valley, CA. See the temperature, wind, air quality, and allergy levels for today and the next week.

  3. Get the latest weather information for Castro Valley, CA, including temperature, wind, humidity, pressure, UV index and more. See hourly and daily forecasts, radar, news and health and activities tips.

  4. Hourly weather forecast in Castro Valley, CA. Check current conditions in Castro Valley, CA with radar, hourly, and more.

  5. 3 days ago · Get the current and future weather conditions for Castro Valley, CA from the National Weather Service. See the temperature, humidity, wind speed, barometer, visibility, and more for the next seven days.

    • San Francisco Bay Area, CA
    • 54°F (12°C)
    • 29.88 in (1011.85 mb)
    • 72%
  6. 62°. 6%. Hourly Local Weather Forecast, weather conditions, precipitation, dew point, humidity, wind from Weather.com and The Weather Channel.

  7. Check current conditions in Castro Valley, CA with radar, hourly, and more.