Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Tropical threat building in Atlantic, click for details. Chevron right

San Mateo, CA

86°F
Location Chevron down
Location News Videos
Use Current Location
Recent

San Mateo

California

86°
No results found.
Try searching for a city, zip code or point of interest.
settings
San Mateo, 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
Monday, September 15

Current Weather

2:49 PM

86°F
Sunny
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
RealFeel®
92°
RealFeel Shade™
85°
Max UV Index
4.4 (Moderate)
Wind
N 3 mph
Wind Gusts
5 mph
Humidity
40%
Indoor Humidity
40% (Slightly Humid)
Dew Point
59° F
Pressure
↓ 29.86 in
Cloud Cover
0%
Visibility
10 mi
Cloud Ceiling
40000 ft

Day

9/15
86°Hi
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
Very warm with some clouds, then sunny

Max UV Index6.0 (High)

AccuLumen Brightness Index™9 (Very Bright)

WindN 6 mph

Wind Gusts20 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover22%

Morning

Afternoon

Night

9/15
57°Lo
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
Clear

WindWSW 5 mph

Wind Gusts13 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover2%

Evening

Overnight

Sun & Moon

12 hrs 26 mins
Rise 6:51 AM
Set 7:17 PM
Waning Crescent
Rise 12:11 AM
Set 4:01 PM

Temperature History

9/15
High
Low
Forecast
86°
57°
Average
78°
54°
Last Year
67°
57°

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Tropical Atlantic may soon become active

2 hours ago

Weather News

Arizona woman swept away, killed in late-night flash flood

7 hours ago

Hurricane

Tropical Storm Mario to funnel rain into California, southwest US

59 minutes ago

Weather News

A common nasal spray may help prevent Covid. What a new study shows

4 hours ago

Weather Forecasts

Dry spell continues for some in the East while beneficial rain arrives

2 hours ago

 More Stories

Featured Stories

Weather News

2 passengers injured after mid-air report of fire prompts evacuation

6 hours ago

Weather News

California firefighting helicopter collision, NTSB final report

5 hours ago

Weather News

Thousands of starfish wash up on beach

5 days ago

Recreation

Snowboarder rescued after 100-foot fall in Colorado

3 days ago

Weather News

Dinosaur eggs from China found to be around 86 million years old

4 hours ago
World North America United States California San Mateo

Weather Near San Mateo:

  • 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 RealFeel® and RealFeel Shade™ 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 RealFeel® and RealFeel Shade™ 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
© 2025 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

...

...

...