Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™

Portola Valley, CA

58°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Portola Valley

California

58°
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
Portola 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

Unlock extended 90-day forecasts

Activate Your Premium+ Subscription

Chevron right

August 24 - September 7

Mon 8/24

80° /58°
5%
Areas of low clouds early; otherwise, mostly sunny and not as warm

RealFeel®84°

RealFeel Shade™77°

Max UV Index8.0 (Very High)

WindWNW 8 mph

Tue 8/25

81° /57°
0%
Low clouds breaking for some sun

RealFeel®84°

RealFeel Shade™78°

Max UV Index7.0 (High)

WindNW 9 mph

Wed 8/26

83° /57°
0%
Areas of low clouds, then some sun and nice

RealFeel®86°

RealFeel Shade™79°

Max UV Index7.0 (High)

WindWNW 9 mph

Thu 8/27

84° /55°
1%
Areas of low clouds, then sun and nice

RealFeel®87°

RealFeel Shade™81°

Max UV Index7.0 (High)

WindW 9 mph

Fri 8/28

77° /55°
25%
Areas of low clouds, then sun

RealFeel®81°

RealFeel Shade™74°

Max UV Index7.0 (High)

WindW 9 mph

Sat 8/29

85° /53°
2%
Areas of low clouds early; otherwise, mostly sunny

RealFeel®86°

RealFeel Shade™82°

Max UV Index7.0 (High)

WindW 9 mph

Sun 8/30

85° /52°
2%
Partly sunny

RealFeel®88°

RealFeel Shade™81°

Max UV Index8.0 (Very High)

WindW 9 mph

Mon 8/31

87° /53°
0%
Sunny

RealFeel®89°

RealFeel Shade™85°

Max UV Index8.0 (Very High)

WindWNW 4 mph

Tue 9/1

87° /53°
0%
Plenty of sunshine

RealFeel®87°

RealFeel Shade™84°

Max UV Index8.0 (Very High)

WindW 6 mph

Wed 9/2

88° /52°
0%
Mostly sunny

RealFeel®88°

RealFeel Shade™85°

Max UV Index7.0 (High)

WindNW 8 mph

Thu 9/3

88° /52°
0%
Mostly sunny

RealFeel®88°

RealFeel Shade™85°

Max UV Index7.0 (High)

WindNW 8 mph

Fri 9/4

89° /53°
0%
Partial sunshine

RealFeel®90°

RealFeel Shade™87°

Max UV Index7.0 (High)

WindW 5 mph

Sat 9/5

88° /54°
0%
Periods of clouds and sunshine

RealFeel®89°

RealFeel Shade™86°

Max UV Index7.0 (High)

WindWNW 6 mph

Sun 9/6

85° /54°
25%
A blanket of clouds

RealFeel®84°

RealFeel Shade™84°

Max UV Index2.0 (Low)

WindNW 5 mph

Mon 9/7

89° /53°
25%
Rather cloudy and warm

RealFeel®89°

RealFeel Shade™89°

Max UV Index2.0 (Low)

WindWSW 2 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Moke to sideswipe Hawaii's Big Island with heavy rain, flood risk

1 hour ago

Weather Forecasts

Taste of fall to last into Wednesday for Northeast

39 minutes ago

Hurricane

Hawaii resumes Lala recovery after Moke passes south

10 minutes ago

Severe Weather

Rare tornadoes struck Delaware and Long Island on Thursday

2 days ago

Severe Weather

Storms to bring hail, damaging winds from Plains to Southeast

1 hour ago

 More Stories

Featured Stories

Recreation

Visitor dies in Death Valley after becoming stranded in 116-degree hea...

2 days ago

Weather News

Lala leaves Hawaii communities buried in mud, communication cut off

5 days ago

Weather News

Fishermen floating in cooler rescued after 5 days stranded at sea

2 days ago

Recreation

250-pound black bear dies after becoming trapped in Colorado car

4 days ago

Weather News

Salmonella cases from jalapeno peppers reach 431 across 32 states

2 days ago
World North America United States California Portola Valley

Weather Near Portola 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

...

...

...