Weather forecast for todayCastro Valley, CA
Weather forecast for today
Current condition 6:17 am PST
- 48°F
- Feels like:46°F
Clear
- Precipitation: 0"
- Wind: 4mphENE 60°
- Humidity: 77%
- Dewpoint: 41°F
- Pressure: 30.05"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Currently, an endless stretch of blue sky remains completely clear.
The temperature is a brisk 48.2°F, with the feels-like temperature closely matching at 46.4°F. The current temperature is at the minimum anticipated for today.
The temperature is a brisk 48.2°F, with the feels-like temperature closely matching at 46.4°F. The current temperature is at the minimum anticipated for today.
Saturday Oct 24, 2026
- 73°F
- 48°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphNNW 342°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:25 am PDT
- Sunset: 6:19 pm PDT
- details ▼
Today, in Castro Valley, sunshine will likely continue with scattered clouds at most.
The maximum anticipated temperature is a warm 73.4°F, while the minimum temperature will be a frosty 48.2°F.
The highest temperature is expected to follow the average for October, around 72.5°F.
Sunrise will be at 7:25 am and sunset at 6:19 pm; the daylight will last for 10h and 53min.
The maximum anticipated temperature is a warm 73.4°F, while the minimum temperature will be a frosty 48.2°F.
The highest temperature is expected to follow the average for October, around 72.5°F.
Sunrise will be at 7:25 am and sunset at 6:19 pm; the daylight will last for 10h and 53min.
Hourly overview
Hourly temperatures
Warmest hour: 4 pm 72°C.
Coldest hour: 8 am 48°C.
Coldest hour: 8 am 48°C.
Chance of precipitation
Highest chance: 12 am 6%.
Hourly weather forecast
- 8 am
- 48°F
- Feels like:46°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 5mphENE 67°
- Humidity: 72%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 9 am
- 54°F
- Feels like:54°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphENE 74°
- Humidity: 60%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 10 am
- 59°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphNNE 19°
- Humidity: 54%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 11 am
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphNNW 343°
- Humidity: 47%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 12 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphNNW 345°
- Humidity: 44%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 1 pm
- 68°F
- Feels like:68°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphNNW 336°
- Humidity: 38%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 70°F
- Feels like:70°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphNW 325°
- Humidity: 36%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 3 pm
- 72°F
- Feels like:72°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNW 317°
- Humidity: 37%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 72°F
- Feels like:72°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphNW 309°
- Humidity: 36%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 5 pm
- 70°F
- Feels like:70°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphWNW 294°
- Humidity: 41%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNW 307°
- Humidity: 47%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:19 pm
- 7 pm
- 63°F
- Feels like:63°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphNW 318°
- Humidity: 57%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 61°F
- Feels like:61°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 3mphNW 319°
- Humidity: 66%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 9 pm
- 59°F
- Feels like:59°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphNW 315°
- Humidity: 69%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 57°F
- Feels like:57°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphNNW 332°
- Humidity: 73%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 11 pm
- 55°F
- Feels like:55°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphNE 41°
- Humidity: 74%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Today, in Castro Valley, mostly cloudless and sunny weather is anticipated.
The temperature will be between a maximum of 71.6°F and a minimum of 48.2°F. The warmest part of the day will be at 3 pm and 4 pm.
The high temperature is expected to be similar to October's usual value of 72.5°F. Forecast models suggest a low more consistent with November's typical minimum of 48.2°F than October's usual 54.3°F.
The temperature will be between a maximum of 71.6°F and a minimum of 48.2°F. The warmest part of the day will be at 3 pm and 4 pm.
The high temperature is expected to be similar to October's usual value of 72.5°F. Forecast models suggest a low more consistent with November's typical minimum of 48.2°F than October's usual 54.3°F.
Updated: Oct 24, 2026 @ 14:17:12 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
At 6:17 am PST, the temperature is 48.2°F.
On Saturday, the weather remains calm, bright, and sunny.
Today, the highest temperature will be 73.4°F, while the lowest temperature will be 48.2°F.
The highest temperature will be in line with the average maximum of 72.5°F in October. Today, the lowest temperature will be a couple of degrees lower than the average low temperature.
The highest temperature will be in line with the average maximum of 72.5°F in October. Today, the lowest temperature will be a couple of degrees lower than the average low temperature.
On Saturday, in Castro Valley, sunrise will be at 7:25 am and sunset at 6:19 pm (PDT).
In Castro Valley, the length of the day today will be 10h and 53min.
Castro Valley, California, USA
- en: Castro Valley, California, USA
- es: Castro Valley, California, EE.UU.
- hr: Kastro Vali, Kalifornija, SAD
- mk: 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: 7:17am PST
- Sunrise: 7:25 am PST
- Sunset: 6:19 pm PST
- 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)
California, USA - most visited locations
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- Chula Vista
- Fremont
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