Weather forecast for todayCastro Valley, CA

Weather forecast for today

Current condition 10:57 pm PST

• 52°F
• Feels like:
  52°F

Clear

• Precipitation: 0"
• Wind: 3mphNE 50°
• Humidity: 79%
• Dewpoint: 46°F
• Pressure: 30.02"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

At the moment, a perfect day unfolds under completely clear skies.
The temperature is a fresh 51.8°F. The current temperature is near the lowest predicted 48.2°F for today.

Friday Oct 23, 2026

• min.
• 48°F

Clear

• Precip. probability: 3%
• Precipitation: 0"
• Wind: 4mphNE 48°
• Humidity: 73%
• UV index: 0
• Sunrise: 7:24 am PDT
• Sunset: 6:20 pm PDT
• details ▼

For the rest of the night, the sky will remain completely clear.
The lowest expected temperature is a frosty 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

• 12 am

• 52°F
• Feels like:
  52°F

Clear

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 4mphNNE 21°
• Humidity: 77%
• Pressure: 30"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 1 am

• 52°F
• Feels like:
  50°F

Clear

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 4mphNNE 14°
• Humidity: 75%
• Pressure: 30"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 2 am

• 52°F
• Feels like:
  50°F

Clear

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 4mphENE 56°
• Humidity: 74%
• 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 63°
• 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: 70%
• 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 58°
• Humidity: 70%
• Pressure: 30"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 6 am

• 50°F
• Feels like:
  48°F

Clear

• Precip. probability: 1%
• Precipitation: 0"
• Wind: 4mphENE 63°
• Humidity: 69%
• Pressure: 30.03"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 7 am

• 48°F
• Feels like:
  46°F

Clear

• Precip. probability: 3%
• Precipitation: 0"
• Wind: 4mphNE 55°
• Humidity: 67%
• Pressure: 30.03"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

Sunrise: 7:24 am

• 8 am

• 50°F
• Feels like:
  48°F

Sunny

• Precip. probability: 2%
• Precipitation: 0"
• Wind: 5mphENE 58°
• Humidity: 64%
• Pressure: 30.03"Hg
• Visibility: 10mi
• UV index: 0
• details ▼

• 9 am

• 54°F
• Feels like:
  54°F

Sunny

• Precip. probability: 1%
• Precipitation: 0"
• Wind: 4mphENE 60°
• Humidity: 57%
• Pressure: 30.03"Hg
• Visibility: 10mi
• UV index: 1
• details ▼

Updated: Oct 24, 2026 @ 06:57:46 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

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