Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
California faces return of widespread rain, mountain snow. Get the details. Chevron right

Castro Valley, CA

54°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Castro Valley

California

54°
No results found.
Try searching for a city, zip code or point of interest.
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Castro Valley, CA Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Wednesday, March 11

Day

3/11
61°Hi
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
RealFeel Shade™ 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
A passing morning shower; otherwise, clouds and sun

Max UV Index3.0 (Moderate)

WindWNW 6 mph

Wind Gusts12 mph

Probability of Precipitation56%

Probability of Thunderstorms11%

Precipitation0.02 in

Rain0.02 in

Hours of Precipitation0.5

Hours of Rain0.5

Cloud Cover68%

Night

3/11
48°Lo
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
Partly cloudy

WindWNW 9 mph

Wind Gusts17 mph

Probability of Precipitation20%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover31%

Sun & Moon

11 hrs 46 mins
Rise 6:26 AM
Set 6:12 PM
Last Quarter
Rise 1:50 AM
Set 10:50 AM

Temperature History

3/11
High
Low
Forecast
61°
48°
Average
64°
47°
Last Year
67°
39°

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Upcoming Valentine's Day storm to bring drenching rain to southern US

20 minutes ago

Recreation

Death Valley could have rare superbloom in 2026

18 hours ago

Winter Weather

Storms line up to revive California's winter

31 minutes ago

Winter Weather

Extreme cold in New York City linked to at least 17 deaths

13 hours ago

Weather Forecasts

Cold to pull back in eastern U.S. during week two, three of February

31 minutes ago

 More Stories

Featured Stories

Winter Weather

Two boys die after falling through ice in Oklahoma

18 hours ago

Astronomy

A snow-rimmed Grand Canyon stands out in astronaut photo

1 day ago

Winter Weather

80-mile crack splits Lake Erie’s ice as the lake nears rare milestone

1 day ago

Weather News

Avalanches on Italian mountains claim 13 lives

1 day ago

Astronomy

6 planets, moon will align in February, but there's a catch

2 days ago
World North America United States California Castro Valley

Weather Near Castro Valley:

  • Oakland, CA
  • San Francisco, CA
  • San Jose, CA
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...