Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Tropical threat is emerging just as the Atlantic hurricane season begins. Get the details. Chevron right
Flood in a drought: Heavy rain to drench southern US into the weekend. See the forecast. Chevron right

Cupertino, CA

70°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Cupertino

California

70°
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
Help
Cupertino, 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
Wednesday, May 27

Current Weather

4:27 PM

70°F
Mostly cloudy
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel Shade™ 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel®
74°
RealFeel Shade™
68°
Max UV Index
3.3 (Moderate)
Wind
W 5 mph
Wind Gusts
9 mph
Humidity
54%
Indoor Humidity
54% (Ideal Humidity)
Dew Point
52° F
Pressure
↔ 29.76 in
Cloud Cover
76%
Visibility
10 mi
Cloud Ceiling
40000 ft

Day

5/27
72°Hi
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel Shade™ 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Partly sunny with a brief shower or two; breezy this afternoon

Max UV Index11.0 (Extreme)

AccuLumen Brightness Index™8 (Bright)

WindWSW 10 mph

Wind Gusts22 mph

Probability of Precipitation84%

Probability of Thunderstorms24%

Precipitation0.03 in

Rain0.03 in

Hours of Precipitation2

Hours of Rain2

Cloud Cover35%

Morning

Afternoon

Night

5/27
54°Lo
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
Mostly cloudy with a passing shower late

WindSSW 7 mph

Wind Gusts9 mph

Probability of Precipitation55%

Probability of Thunderstorms11%

Precipitation0.02 in

Rain0.02 in

Hours of Precipitation0.5

Hours of Rain0.5

Cloud Cover93%

Evening

Overnight

Sun & Moon

14 hrs 29 mins
Rise 5:51 AM
Set 8:20 PM
Waxing Gibbous
Rise 5:19 PM
Set 3:53 AM

Temperature History

5/27
High
Low
Forecast
72°
54°
Average
75°
51°
Last Year
72°
52°

Current Weather Conditions in Cupertino

Cupertino, California is currently Mostly cloudy with a temperature of 70°. The current RealFeel® Temperature is 74° (Pleasant) based on observed conditions including 54% humidity, 76% cloud cover, a UV index of 3, and winds of 5 mph. In shade, the RealFeel Shade™ is 68°. AccuWeather's MinuteCast® provides minute-by-minute precipitation forecasts for Cupertino, powered by forecasting systems and proprietary technology developed by AccuWeather meteorologists since 1962.

Further Ahead

Hourly

10-Day

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Summerlike midweek surge in Northeast to be chased by more chill

3 hours ago

Severe Weather

Woman dies after vehicle is swept away in Mississippi flash flooding

1 day ago

Weather Forecasts

Downpours bring heightened flood risk, drought relieve to southern US

3 hours ago

Hurricane

Tropical threat emerging from central Gulf to Florida waters

3 hours ago

Weather News

Europe’s deadly, early heatwave is smashing records

8 hours ago

More Stories

Featured Stories

Recreation

Spring snow closes Tioga Road into Yosemite National Park

7 hours ago

Weather News

2 humpback whales traveled over 9,000 miles between Australia and Braz...

1 day ago

Astronomy

What happened when an astronaut suddenly couldn’t speak in space

9 hours ago

Health

Tick bite ER visits are climbing as peak season approaches

7 hours ago

Climate

What is the Great Pacific Garbage Patch?

1 day ago

World North America United States California Cupertino

Weather Near Cupertino:

  • 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

...

...

...