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Today weather in Castro Valley

Saturday, June 20th, 2026
today weather
23°
Partly cloudy
Weather Alert Official weather alert: Beach Hazards Statement.
Castro Valley will experience a pleasantly warm today, reaching temperatures of up to 22 °C and cooling to about 14 °C in the evening. It'll be quite breezy in Castro Valley Today with average wind speeds of 19 km/h. There's a slight chance of rain at 12%.
23° / 14°
Temp
12%
Rain
19 km/h
Wind
76%
Humidity

Castro Valley hourly forecast for today

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00:0001:0002:0003:0004:0005:0005:4606:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0020:3321:0022:0023:00
weatherSunnyPartly cloudyPartly cloudyPartly cloudyOvercastOvercastsunriseOvercastOvercastOvercastOvercastCloudyPartly cloudySunnySunnySunnySunnySunnySunnySunnySunnySunnysunsetSunnyCloudyOvercastNext
temperatures15.4°15°14.7°15.3°15.4°15.3°Sunrise15.3°15.6°16°17°18.1°19.1°20°21.1°21.8°22.2°22°20.6°19.4°17.8°16.3°Sunset15.3°14.7°14.3°
wind speed8 km/h7 km/h4 km/h2 km/h1 km/h2 km/h2 km/h2 km/h4 km/h5 km/h7 km/h9 km/h12 km/h16 km/h19 km/h18 km/h18 km/h18 km/h18 km/h16 km/h12 km/h9 km/h8 km/h7 km/h
wind degree250°258°244°247°220°187°206°212°243°242°253°266°269°272°275°276°276°277°277°274°271°261°257°254°
wind directionWSWWSWWSWWSWSWSSSWSSWWSWWSWWSWWWWWWWWWWWWWSWWSW
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
chance for rain14%16%19%16%22%24%26%25%24%22%13%8%5%5%4%4%4%4%6%8%7%13%25%30%
chance for snow0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%
humidity87%89%91%92%75%81%85%83%81%79%70%66%63%61%60%60%60%55%64%74%74%88%91%91%
dew point13°13.2°13.2°13.1°11.5°12.2°12.6°12.5°12.6°12.8°12.3°12.6°13°13.2°14.1°14.4°14.3°14°13.8°12.7°11.6°13°12.8°12.8°
visibility10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km16 km10 km10 km10 km10 km10 km10 km
cloud cover22%30%45%31%100%100%100%100%100%100%75%44%24%20%14%11%10%0%9%13%6%15%80%100%
UV00000000.31.22.85.17.49.2109.47.85.63.31.60.50000

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Weather in Castro Valley today

temperatures
temperatures
23 °C
rain
rain
0 mm
wind
wind
19 km/h
10
UV
Very High
Castro Valley daylight overview ☀️
Today in Castro Valley, The sun rises at 05:46 and sets at 20:33, giving a total daylight duration of 14 hours and 47 minutes.

Quick links

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What to wear today in Castro Valley? clothing recommendations

Stay comfortably stylish - your tailored guide for today's Castro Valley forecast.
  • Long-sleeve shirtLong-sleeve shirt
  • Long pantLong pant
  • Closed-toe shoesClosed-toe shoes
  • Light jacketLight jacket

The weather today in Castro Valley - FAQ

What is the maximum temperature for today in Castro Valley?

The maximum temperature for today in Castro Valley is expected to be 23° degrees. Please dress accordingly to stay comfortable throughout the day.

Will it rain today in Castro Valley? 🌧️

Yes, there is a 12% chance of rain in Castro Valley today. We recommend carrying an umbrella or rain gear to stay dry.

What will be the wind speed today in Castro Valley? 🌀

The wind in Castro Valley is expected to blow at 19 km/h. This could affect outdoor activities, so plan accordingly.

How should I dress for the weather in Castro Valley today?

Given the forecast of 23 °C with a 12% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Castro Valley today.

What is the sunrise and sunset time for Castro Valley today?

The sun is expected to rise at 05:46 and set at 20:33 in Castro Valley.

How accurate is the weather forecast Castro Valley today? ✅

Castro Valley weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
Location coordinates Where is Castro Valley?

Get accurate weather forecasts for Castro Valley, located at latitude 37.694 and longitude -122.086. Stay updated with localized weather information tailored for Castro Valley.

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