🇺🇸 Weather in Castro Valley
Current Weather in Castro Valley
In Castro Valley right now it is 22°C and sunny, feeling like 22°C. Humidity is 28% with winds around 17 km/h, and the UV index is 10 (very high). Over the next few days, temperatures in Castro Valley range from about 8°C to 24°C. ⚠️ Beach Hazards Statement issued June 5 at 5:49AM PDT until June 6 at 9:00AM PDT by NWS San Francisco CA
Hourly Forecast for Castro Valley
14-Day Forecast for Castro Valley
Sunny
Sunny
Partly Cloudy
Patchy rain nearby
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Additional Forecasts for Castro Valley
Air Quality
Historical Weather
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Best Time to Be Outside in Castro Valley Today
The most comfortable window in Castro Valley today looks like 16:00 to 18:00, when it is around 20°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in Castro Valley
What is the temperature in Castro Valley right now?
The current temperature in Castro Valley is 22°C (71°F), sunny (feels like 22°C).
What's the weather like in Castro Valley right now?
Conditions in Castro Valley right now: Sunny, humidity 28%, wind 17 km/h WSW.
What is today's forecast for Castro Valley?
Today in Castro Valley: high 24°C, low 11°C, sunny. Chance of rain: 1%.
What is the 7-day weather forecast for Castro Valley?
Daily highs and lows for Castro Valley:
- 2026-06-06: 24°C / 11°C
- 2026-06-07: 21°C / 8°C
- 2026-06-08: 19°C / 10°C
- 2026-06-09: 22°C / 12°C
- 2026-06-10: 27°C / 10°C
- 2026-06-11: 31°C / 14°C
- 2026-06-12: 30°C / 14°C
Is it going to rain in Castro Valley today?
There is a 1% chance of rain in Castro Valley today.
What is the wind speed in Castro Valley right now?
Wind in Castro Valley is currently 17 km/h (11 mph) from the WSW.
What is the UV index in Castro Valley right now?
The UV index in Castro Valley is currently 9.5 (very high). Sun protection is recommended when the index is 3 or higher.
