Weather forecast for today
Sunday, Apr 20.
6:24 am
7:50 pm
PDT
7:50 pm
PDT
Mostly Sunny
72°F / 48°F
- Wind: 11mph W
- Humidity: 61%
- Precip. probability: 6%
- Precipitation: 0"
- UV index: 8
Today, mostly sunny skies are expected.
Forecasted temperature values will span from a delightful 71.6°F down to a brisk 48.2°F.
Today's peak is anticipated to be moderately higher than the regular high for April at 66.2°F.
Sunrise will be at 6:24 am and sunset at 7:50 pm; the daylight will last for 13h and 26min.
Forecasted temperature values will span from a delightful 71.6°F down to a brisk 48.2°F.
Today's peak is anticipated to be moderately higher than the regular high for April at 66.2°F.
Sunrise will be at 6:24 am and sunset at 7:50 pm; the daylight will last for 13h and 26min.
Current condition
2:05 am PDT
Cloudy
- 52°F
- Feels like: 52°F
- Wind: 5mph W
- Humidity: 80%
- Dewpoint: 46°F
- Pressure: 30.11"Hg
- Precipitation: 0"
- Visibility: 9mi
- UV index: 0
In Castro Valley, currently, the sun remains hidden behind an impenetrable layer of clouds.
The temperature is a cool 51.8°F. The current temperature is near the lowest predicted 48.2°F for today.
The temperature is a cool 51.8°F. The current temperature is near the lowest predicted 48.2°F for today.
Frequently asked questions
What is the temperature now?
The current temperature (2:05 am PDT) is 51.8°F.
What is the weather forecast for Castro Valley for today?
Today, in Castro Valley, expect brilliant sunshine under mostly clear skies.
What will be the maximum temperature today?
Today, the maximum temperature will be 71.6°F, while the minimum temperature will be 48.2°F.
Today, the maximum temperature will be a couple of degrees higher than the average highest temperature in April. The lowest temperature today will be in line with the average low temperature.
Today, the maximum temperature will be a couple of degrees higher than the average highest temperature in April. The lowest temperature today will be in line with the average low temperature.
When are sunrise and sunset today?
On Sunday, in Castro Valley, sunrise will be at 6:24 am and sunset at 7:50 pm (PDT).
How long is the day today?
In Castro Valley, today, there will be 13h and 26min of daylight.
Hourly weather forecast
2 am
- 52°F
- Feels like:
52°F
Cloudy
- Wind: 5mph WSW
- Pressure: 30.09"Hg
- Humidity: 80%
- Precip. probability: 3%
- Precipitation: 0"
- Visibility: 9mi
4 am
- 52°F
- Feels like:
52°F
Cloudy
- Wind: 4mph W
- Pressure: 30.09"Hg
- Humidity: 81%
- Precip. probability: 5%
- Precipitation: 0"
- Visibility: 10mi
6 am
- 52°F
- Feels like:
52°F
Mostly Cloudy
- Wind: 2mph WNW
- Pressure: 30.09"Hg
- Humidity: 82%
- Precip. probability: 3%
- Precipitation: 0"
- Visibility: 7mi
Sunrise: 6:24 am
8 am
- 52°F
- Feels like:
52°F
Mostly Cloudy
- Wind: 2mph WSW
- Pressure: 30.09"Hg
- Humidity: 80%
- Precip. probability: 3%
- Precipitation: 0"
- Visibility: 10mi
10 am
- 57°F
- Feels like:
57°F
Partly Cloudy
- Wind: 3mph WSW
- Pressure: 30.09"Hg
- Humidity: 74%
- Precip. probability: 4%
- Precipitation: 0"
- Visibility: 10mi
12 pm
- 63°F
- Feels like:
63°F
Sunny
- Wind: 6mph W
- Pressure: 30.06"Hg
- Humidity: 59%
- Precip. probability: 1%
- Precipitation: 0"
- Visibility: 10mi
2 pm
- 68°F
- Feels like:
68°F
Sunny
- Wind: 9mph W
- Pressure: 30.03"Hg
- Humidity: 49%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
4 pm
- 70°F
- Feels like:
70°F
Mostly Sunny
- Wind: 11mph W
- Pressure: 30"Hg
- Humidity: 45%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
6 pm
- 64°F
- Feels like:
64°F
Sunny
- Wind: 11mph WNW
- Pressure: 30"Hg
- Humidity: 54%
- Precip. probability: 1%
- Precipitation: 0"
- Visibility: 10mi
Sunset: 7:50 pm
8 pm
- 57°F
- Feels like:
57°F
Clear
- Wind: 7mph W
- Pressure: 30"Hg
- Humidity: 70%
- Precip. probability: 5%
- Precipitation: 0"
- Visibility: 10mi
10 pm
- 54°F
- Feels like:
54°F
Mostly Clear
- Wind: 5mph W
- Pressure: 30.03"Hg
- Humidity: 79%
- Precip. probability: 7%
- Precipitation: 0"
- Visibility: 10mi
Today, in Castro Valley, a combination of gloomy and sun-filled weather is forecasted.
The temperature will vary between a minimum of 51.8°F and a maximum of 69.8°F. The warmest part of the day will be at 3 pm and 4 pm.
Today, expect temperatures a couple of degrees higher than what is usual for April. Today, the lowest temperature will be also in line with April's usual minimum.
The temperature will vary between a minimum of 51.8°F and a maximum of 69.8°F. The warmest part of the day will be at 3 pm and 4 pm.
Today, expect temperatures a couple of degrees higher than what is usual for April. Today, the lowest temperature will be also in line with April's usual minimum.
Updated: Apr 20, 2025 @ 09:05:24 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Castro Valley, California, USA
- en: Castro Valley, California, USA
- es: Castro Valley, California, EE.UU.
- hr: Kastro Vali, Kalifornija, SAD
- sr: Kastro Vali, Kalifornija, SAD
- zh: 卡斯特罗谷, 加利福尼亚州, 美国
- Latitude: 37.694097°
- Longitude: -122.086352°
- Elevation: 161 ft
- Current time: 2:05am PDT
- Sunrise: 6:24 am PDT
- Sunset: 7:50 pm PDT
- Timezone: America/Los_Angeles
Nearby Castro Valley, California, USA
- Cherryland (1 mi)
- Ashland (1 mi)
- Hayward (2 mi)
- San Lorenzo (2 mi)
- Fairview (2 mi)
- San Leandro (4 mi)
- Union City (7 mi)
- Dublin (8 mi)
- San Ramon (8 mi)
- Alameda (10 mi)
- Danville (10 mi)
- Moraga (10 mi)
- Canyon (11 mi)
- Piedmont Pines (11 mi)
- Fremont (11 mi)
- Newark (12 mi)
- Pleasanton (12 mi)
- Diablo (12 mi)
- Piedmont (12 mi)
- Oakland (12 mi)
- Sunol (13 mi)
- Blackhawk (13 mi)
- Lafayette (13 mi)
- Mowry Landing (14 mi)