Castro Valley weather forecast
Sunny
Feels like 14°
Clear skies.
14 Days Forecast
Hourly Weather Forecast
Precipitation (mm)
Weather Map

Weather: Today
Air Quality
Air-quality data only reaches four days ahead, so it is not available for the day selected.
Allergy Outlook
Sunrise & Sunset
12h 55m- Sunrise
- 06:41 AM
- Sunset
- 07:36 PM
- Length of day
- 12h 55m
- Solar noon
- 01:09 PM
- Golden hour
- until 07:16 AM, from 07:01 PM
- Civil twilight
- 06:14 AM / 08:03 PM
Moon
Details →Phase
Waning gibbous
7.9 days left until the new moon
- Illumination
- 56%
- Age
- 21.6 days
- Moonrise
- 11:17 PM
- Moonset
- 02:00 PM
Frequently asked questions about Castro Valley weather
What is the weather in Castro Valley today?
Right now in Castro Valley: sunny, with a temperature of 15°C. Today's temperature ranges from 13°C to 20°C, with a 47% chance of rain.
What is the temperature in Castro Valley right now?
The current temperature in Castro Valley is 15°C and it feels like 14°C. Humidity is 82% and winds are blowing at 4 km/h.
What is the weather forecast for Castro Valley, United States?
The forecast for Castro Valley over the next 12 hours: sunny, with rain chances peaking at 23% in that window. The hourly and 14-day forecasts above track how temperature, rain and wind change from here.
What will the weather be in Castro Valley tomorrow?
Friday in Castro Valley: sunny, with a high of 21°C and a low of 12°C. The chance of rain is 0%. Wind should reach around 16 km/h.
What time is it in Castro Valley right now?
The current local time in Castro Valley is 6:56 AM. Castro Valley uses the America/Los_Angeles time zone, which is independent of your own.
What is the air quality in Castro Valley today?
The air quality index in Castro Valley is 8, rated Good, with PM2.5 measured at 1.5 µg/m³.
What time are sunrise and sunset in Castro Valley?
The sun rises at 06:41 AM and sets at 07:36 PM local time in Castro Valley, giving 12h 55m of daylight.