Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Severe weather returns to central US this weekend with flood potential | Click to see the impacts. Chevron right
Torrential rain in Arthur's wake could lead to more flooding. Click for the forecast. Chevron right

Castro Valley, CA

62°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Castro Valley

California

62°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
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
Help
Castro Valley, CA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day 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 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
Saturday, June 20

Day

6/20
73°Hi
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel Shade™ 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Clouds giving way to sun

Max UV Index11.0 (Extreme)

AccuLumen Brightness Index™8 (Bright)

WindW 10 mph

Wind Gusts24 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover24%

Morning

Afternoon

Night

6/20
56°Lo
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
Mostly cloudy

WindWSW 7 mph

Wind Gusts16 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover84%

Evening

Overnight

Sun & Moon

14 hrs 46 mins
Rise 5:47 AM
Set 8:33 PM
Waxing Crescent
Rise 12:06 PM
Set 12:44 AM

Temperature History

6/20
High
Low
Forecast
73°
56°
Average
75°
56°
Last Year
68°
52°

Further Ahead

Hourly

10-Day

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

Severe storms to return to central US as flood risk rises

13 hours ago

Weather News

Rescues underway, dam fears grow as Arthur floods Gulf Coast homes

16 hours ago

Severe Weather

Torrential rain to aggravate flooding for southern US in Arthur’s wake

11 hours ago

Severe Weather

Tornadoes, winds rip through Illinois causing widespread damage

1 day ago
Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

High winds delay opening of World Cup Fan Festival in Boston

13 hours ago

 More Stories

Featured Stories

Severe Weather

Illinois has already surpassed its record year for tornado reports

1 day ago

Recreation

Black bear injures teen on Washington trail

1 day ago

Astronomy

Meteorological summer vs. astronomical summer explained

1 day ago

Recreation

Free climber dies after falling into volcanic crater in Yemen

2 days ago

Health

Pickle is the pumpkin spice of summer

4 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

...

...

...