PROGRAMMING ALERT: Hurricane season special premieres on the AccuWeather TV network this week. Get the details. Chevron right

Altadena, CA

80° F
Location Chevron down
Location News Videos
Use Current Location
Recent

Altadena

California

80°
No results found.
Try searching for a city, zip code or point of interest.
settings
Altadena, 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

Video

Podcasts

Winter Center

Today

 Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities

Current Weather

1:46 PM

80°F
RealFeel® 90°
RealFeel Shade™ 78°
Air Quality Poor
Wind SSW 4 mph
Wind Gusts 8 mph
Sunny More Details

Current Air Quality

Today

5/24

66
AQI

Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.

Based on Current Pollutants

More Details

Learn more at Plumb Labs Logo

Current Air Quality

Our current air quality index (AQI) provides information on the quality of air that you are breathing and its impact on your health. There are at least six different pollutants that we track that impact the cleanliness of air and your health.

Health & Activities
See all
Tree Pollen
Low
The risk of tree pollen symptoms is low.
Ragweed Pollen
Moderate
The risk for ragweed pollen symptoms is moderate. Avoid walking in areas with tall grass or plants.
Mold
Low
The risk of mold allergy symptoms is low.
Grass Pollen
Low
The risk of grass pollen symptoms is low.
Dust & Dander
Moderate
The risk of dust and dander allergy symptoms is moderate. Closing your windows on windy days can help prevent outside dust or dander from getting into your home.
Arthritis
Moderate
The risk of experiencing weather-related arthritis pain is moderate. Stay hydrated and stretch to help avoid arthritis symptoms.
Sinus Pressure
Moderate
The risk of weather-related sinus pressure is moderate. Make sure you stay hydrated.
Common Cold
Low
The risk of catching a cold is low.
Flu
Low
The risk of catching the flu is low.
Migraine
Low
The risk of suffering from a weather-related migraine is low.
Asthma
Moderate
The risk of asthma symptoms is moderate.
Fishing
Great
Fishing conditions are great. Find an area with less boat or human activity to avoid areas where fish are hiding.
Running
Great
Conditions for running are great. Be sure to warm up and cool down adequately.
Golf
Great
Conditions for golfing are great. Stay hydrated when spending time in the sun.
Biking & Cycling
Great
Conditions for cycling are great. Be sure you have the correct gear to keep your core temperature warm during winter months and cool during hot weather.
Beach & Pool
Great
Conditions for a day at the beach or pool are great. Remember to stay hydrated.
Stargazing
Great
Conditions for stargazing are great. Invest in a red flashlight. It can help prevent additional light pollution.
Hiking
Great
Conditions for hiking are great. Wear sunscreen and UV-protective clothing.
Lawn Mowing
Great
Conditions for lawn mowing are great. Ensure you are servicing your mower frequently to keep the blades sharp.
Composting
Good
Composting conditions are good. Make sure you frequently add water to your compost to keep it moist.
Outdoor Entertaining
Great
Conditions for outdoor entertaining will be great. Pay attention to the mosquito or pest forecast and prepare deterrents.
Air Travel
Ideal
Conditions for flying are ideal. Have a safe trip.
Driving
Great
Conditions for driving are great. Remain prepared for changing weather by tracking ongoing forecasts.
Mosquitos
High
The risk for mosquito activity are high. Replacing outdoor lights with yellow bug lights can attract less insects.
Indoor Pests
High
The risk for pest activity is high. Replacing outdoor lights with yellow bug lights can attract less insects near your home.
Outdoor Pests
High
The risk for pest activity is high. Replacing outdoor lights with yellow bug lights can attract less insects.
See all

TODAY’S WEATHER FORECAST

5/24
83°Hi
RealFeel® 90°
Mostly sunny

TONIGHT’S WEATHER FORECAST

5/24
60°Lo
RealFeel® 61°
Mostly clear

TOMORROW’S WEATHER FORECAST

5/25
84°/ 59°
RealFeel® 91°
Mostly sunny

Altadena Weather Radar

See Interactive Map
Altadena Weather Radar
Static Radar Temporarily Unavailable
Thank you for your patience as we work to get everything up and running again.
Refresh Page
See Interactive Map

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Podcasts

Winter Center

Top Stories

Weather Forecasts

Latest Memorial Day weekend forecast not looking promising in Northeas...

1 hour ago

Weather News

Jumping worms, the evil twin of earthworms, showing up in California

5 hours ago

Severe Weather

'Very scary sight to see' as massive tornado spins across open field

1 hour ago

Tornado leaves devastating path of damage

2 days ago 0:53

Podcast: Wildfires, droughts, energy shortages: a long hot summer ahea...

 More Stories

Featured Topic

Local Arthritis Forecast

Featured Stories

It's been 75 years since the first named hurricane struck US soil Comfy mattresses you can pick up on sale this Memorial Day Coolers that'll help you beat the extreme summer heat
World North America United States California Altadena

Weather Near Altadena:

Chevron left
Chevron right
  • Anaheim, CA ;
  • Long Beach, CA ;
  • Los Angeles, CA
Company
Proven Superior Accuracy About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs Podcast RealFeel® and RealFeel Shade™
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Shop AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Weather Blogs Winter Weather
Company
Proven Superior Accuracy About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs Podcast RealFeel® and RealFeel Shade™
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Shop AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Weather Blogs Winter Weather
© 2021 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | TAG Disclosure | Do Not Sell My Data checkmark Confirmed Not Selling Your Data

We have updated our Privacy Policy and Cookie Policy.

I Understand

Get AccuWeather alerts as they happen with our browser notifications.

Notifications Enabled

Thanks! We’ll keep you informed.

FEEDBACK