Weather forecast for todayCastro Valley, CA

Weather forecast for today

Current condition 9:24 pm PST

• 54°F
• Feels like:
  54°F

Clear

• Precipitation: 0"
• Wind: 2mphS 170°
• Humidity: 80%
• Dewpoint: 48°F
• Pressure: 30.03"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

At the moment, skies are clear and bright, offering ideal outdoor conditions.
The temperature is a crisp 53.6°F. The current temperature is a few degrees off the lowest expected temperature.

Friday Oct 23, 2026

• min.
• 48°F

Clear

• Precip. probability: 3%
• Precipitation: 0"
• Wind: 4mphNE 42°
• Humidity: 74%
• UV index: 0
• Sunrise: 7:24 am PDT
• Sunset: 6:20 pm PDT
• details ▼

In Castro Valley, for the rest of the night, 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 at 6:20 pm; the daylight lasted for 10h and 56min.

Hourly overview

Hourly weather forecast

• 11 pm

• 54°F
• Feels like:
  54°F

Clear

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 2mphWNW 303°
• Humidity: 76%
• Pressure: 30.03"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 12 am

• 54°F
• Feels like:
  54°F

Clear

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 2mphNNE 23°
• Humidity: 77%
• Pressure: 30"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 1 am

• 52°F
• Feels like:
  52°F

Clear

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 2mphNNE 19°
• Humidity: 78%
• Pressure: 30"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 2 am

• 52°F
• Feels like:
  52°F

Clear

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 3mphNE 53°
• Humidity: 72%
• Pressure: 30"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 3 am

• 52°F
• Feels like:
  50°F

Clear

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 4mphENE 61°
• Humidity: 71%
• Pressure: 30"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 4 am

• 50°F
• Feels like:
  50°F

Clear

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 4mphE 87°
• Humidity: 71%
• Pressure: 30"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 5 am

• 50°F
• Feels like:
  48°F

Clear

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 4mphENE 60°
• Humidity: 72%
• Pressure: 30"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 6 am

• 50°F
• Feels like:
  48°F

Clear

• Precip. probability: 3%
• Precipitation: 0"
• Wind: 4mphENE 61°
• Humidity: 68%
• Pressure: 30"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 7 am

• 50°F
• Feels like:
  48°F

Clear

• Precip. probability: 3%
• Precipitation: 0"
• Wind: 4mphENE 62°
• Humidity: 67%
• Pressure: 30.03"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 8 am

• 50°F
• Feels like:
  48°F

Sunny

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 4mphENE 63°
• Humidity: 65%
• Pressure: 30.03"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

Updated: Oct 24, 2026 @ 05:24:39 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

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