Weather forecast for todayCastro Valley, CA

Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Weather forecast for today

Current condition 5:01 pm PST

  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 11mphWNW 290°
  • Humidity: 55%
  • Dewpoint: 52°F
  • Pressure: 30.01"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
At the moment, the sun is out in full force, making the weather bright and warm.
The temperature is an agreeable 68°F. The current temperature is still far from the anticipated minimum of 48.2°F.

Friday Oct 23, 2026

  • min.
  • 48°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 10mphN 10°
  • Humidity: 66%
  • UV index: 0
  • Sunrise: 7:24 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
During the evening and overnight hours, blue skies and clear weather will prevail.
The lowest temperature will be a brisk 48.2°F.
Sunrise was at 7:24 am and sunset will be at 6:20 pm; the daylight will last for 10h and 56min.

Hourly overview

Hourly temperatures

Warmest hour: 6 pm 68°C.
Coldest hour: 2 am 52°C.

Chance of precipitation

Highest chance: 2 am 5%.

Hourly weather forecast

  • 6 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphNW 313°
  • Humidity: 56%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:20 pm
  • 7 pm
  • 64°F
  • Feels like:
    64°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 8mphNW 316°
  • Humidity: 60%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 61°F
  • Feels like:
    61°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphNW 311°
  • Humidity: 64%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 59°F
  • Feels like:
    59°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphNW 305°
  • Humidity: 67%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 57°F
  • Feels like:
    57°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphWNW 296°
  • Humidity: 68%
  • 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: 3mphNW 304°
  • Humidity: 67%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphNNE 26°
  • Humidity: 69%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 1 am
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphNNE 22°
  • Humidity: 71%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphNE 54°
  • Humidity: 70%
  • 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 62°
  • Humidity: 70%
  • 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 84°
  • Humidity: 70%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
During the evening and overnight hours, a cloudless sky and mainly sunshiny weather are expected.
The temperature will be between the highest temperature of 68°F and the lowest temperature of 55.4°F.
Updated: Oct 24, 2026 @ 01:01:40 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (5:01 pm PST) in Castro Valley is 68°F.

On Friday, a sun-filled, clear sky is on the way.

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

In Castro Valley, the length of the day today will be 10h and 56min.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

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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: 6:27pm PDT
  • Sunrise: 7:24 am PDT
  • Sunset: 6:20 pm PDT
  • Timezone: America/Los_Angeles

Nearby Castro Valley, California, USA

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