Weather forecast for todayCastro Valley, CA

Weather forecast for today

Current condition 6:42 pm PST

  • 61°F
  • Feels like:
    59°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 6mphWNW 290°
  • Humidity: 69%
  • Dewpoint: 48°F
  • Pressure: 30.02"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Currently, skies are clear and bright, offering ideal outdoor conditions.
The temperature is an enjoyable 60.8°F, the feels-like temperature is nearly identical at 59°F. The current temperature is still relatively far from minimum-forecasted 48.2°F.

Friday Oct 23, 2026

  • min.
  • 48°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphNNE 17°
  • Humidity: 70%
  • UV index: 0
  • Sunrise: 7:24 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
In Castro Valley, during the evening and into the night, a cloudless sky and clear weather are expected.
The lowest temperature will be a chilly 48.2°F.
Sunrise was at 7:24 am and sunset at 6:20 pm; the daylight lasted for 10h and 56min.

Hourly overview

Hourly temperatures

Warmest hour: 8 pm 59°C.
Coldest hour: 4 am 50°C.

Chance of precipitation

Highest chance: 3 am 4%.

Hourly weather forecast

  • 8 pm
  • 59°F
  • Feels like:
    59°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphNW 310°
  • Humidity: 69%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 57°F
  • Feels like:
    57°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphWNW 303°
  • Humidity: 69%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphWNW 296°
  • Humidity: 70%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphWNW 299°
  • Humidity: 67%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNNE 26°
  • Humidity: 71%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 1 am
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNNE 23°
  • Humidity: 72%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphENE 58°
  • Humidity: 72%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 3 am
  • 52°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphENE 65°
  • Humidity: 71%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphE 87°
  • Humidity: 70%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 5 am
  • 50°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphENE 63°
  • Humidity: 70%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
During the evening and for the rest of the night, the weather will be unstable. The temperature will vary between a maximum of 59°F and a minimum of 55.4°F.
Updated: Oct 24, 2026 @ 02:42:37 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (6:42 pm PST) in Castro Valley is 60.8°F.

On Friday, in Castro Valley, the weather will remain pristine and clear.

On Friday, in Castro Valley, sunrise was at 7:24 am and sunset at 6:20 pm (PDT).

Today in Castro Valley, the length of the day was 10h and 56min.

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: 7:42pm PST
  • Sunrise: 7:24 am PST
  • Sunset: 6:20 pm PST
  • Timezone: America/Los_Angeles

Nearby Castro Valley, California, USA

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