Weather forecast for today
Wednesday, Jun 18.
5:44 am
8:34 pm
PDT
8:34 pm
PDT
Sunny
79°F / 54°F
- Wind: 11mph W
- Humidity: 38%
- Precip. probability: 0%
- Precipitation: 0"
- UV index: 9
On Wednesday, June 18, expect bright skies and plenty of sunshine.
Expected temperatures will peak at a moderately hot 78.8°F and dip to a minimum of a cool 53.6°F.
This expected maximum temperature is expected to mirror June's typical high of 77°F.
Sunrise was at 5:44 am and sunset will be at 8:34 pm; the daylight will last for 14h and 49min.
Expected temperatures will peak at a moderately hot 78.8°F and dip to a minimum of a cool 53.6°F.
This expected maximum temperature is expected to mirror June's typical high of 77°F.
Sunrise was at 5:44 am and sunset will be at 8:34 pm; the daylight will last for 14h and 49min.
Current condition
2:40 pm PDT
Sunny
- 79°F
- Feels like: 79°F
- Wind: 11mph W
- Humidity: 32%
- Dewpoint: 46°F
- Pressure: 29.86"Hg
- Precipitation: 0"
- Visibility: 10mi
- UV index: 8
Currently, the sun is out in full force, making the weather bright and warm.
The temperature is a moderately hot 78.8°F. The present temperature is at its highest of the day.
The temperature is a moderately hot 78.8°F. The present temperature is at its highest of the day.
Frequently asked questions
What is the temperature now?
Currently (2:40 pm PDT) it is 78.8°F in Castro Valley.
What is the weather forecast for Castro Valley for today?
Today, in Castro Valley, expect sunny weather with a crisp, clear sky.
What will be the maximum temperature today?
Today, the highest temperature will be 78.8°F, while the lowest temperature will be 53.6°F.
The maximum temperature will be in line with the average highest temperature of 77°F in June. The lowest temperature will be also in line with the average low of 53.6°F.
The maximum temperature will be in line with the average highest temperature of 77°F in June. The lowest temperature will be also in line with the average low of 53.6°F.
When are sunrise and sunset today?
On Wednesday, in Castro Valley, sunrise was at 5:44 am and sunset will be at 8:34 pm (PDT).
How long is the day today?
In Castro Valley, today, there will be 14h and 49min of daylight.
Hourly weather forecast
3 pm
- 79°F
- Feels like:
79°F
Sunny
- Wind: 11mph W
- Pressure: 29.83"Hg
- Humidity: 33%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
4 pm
- 77°F
- Feels like:
77°F
Sunny
- Wind: 11mph W
- Pressure: 29.83"Hg
- Humidity: 36%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
5 pm
- 75°F
- Feels like:
75°F
Sunny
- Wind: 11mph W
- Pressure: 29.83"Hg
- Humidity: 39%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
6 pm
- 72°F
- Feels like:
72°F
Sunny
- Wind: 11mph W
- Pressure: 29.8"Hg
- Humidity: 48%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
7 pm
- 68°F
- Feels like:
68°F
Sunny
- Wind: 10mph W
- Pressure: 29.83"Hg
- Humidity: 54%
- Precip. probability: 1%
- Precipitation: 0"
- Visibility: 10mi
8 pm
- 64°F
- Feels like:
64°F
Sunny
- Wind: 9mph WSW
- Pressure: 29.83"Hg
- Humidity: 60%
- Precip. probability: 2%
- Precipitation: 0"
- Visibility: 10mi
Sunset: 8:34 pm
9 pm
- 61°F
- Feels like:
61°F
Clear
- Wind: 7mph WSW
- Pressure: 29.83"Hg
- Humidity: 65%
- Precip. probability: 2%
- Precipitation: 0"
- Visibility: 10mi
10 pm
- 61°F
- Feels like:
59°F
Clear
- Wind: 8mph WSW
- Pressure: 29.83"Hg
- Humidity: 68%
- Precip. probability: 6%
- Precipitation: 0"
- Visibility: 10mi
11 pm
- 59°F
- Feels like:
57°F
Clear
- Wind: 7mph SW
- Pressure: 29.83"Hg
- Humidity: 70%
- Precip. probability: 7%
- Precipitation: 0"
- Visibility: 10mi
12 am
- 57°F
- Feels like:
55°F
Clear
- Wind: 7mph SW
- Pressure: 29.83"Hg
- Humidity: 73%
- Precip. probability: 12%
- Precipitation: 0"
- Visibility: 10mi
For the rest of the day, a cloudless sky and mainly sunshiny weather are expected.
The temperature will be between the highest temperature of 78.8°F and the lowest temperature of 59°F. The warmest part of the day will be around 3 pm.
The maximum temperature will be similar to the average high of 77°F in June. The lowest temperature is also close to June's typical minimum of 53.6°F.
The temperature will be between the highest temperature of 78.8°F and the lowest temperature of 59°F. The warmest part of the day will be around 3 pm.
The maximum temperature will be similar to the average high of 77°F in June. The lowest temperature is also close to June's typical minimum of 53.6°F.
Updated: Jun 18, 2025 @ 21:40:07 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: 2:40pm PDT
- Sunrise: 5:44 am PDT
- Sunset: 8:34 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)