Your favorites:

Altadena, CA Weather Forecast and Current Conditions (91001)

Clear 67°F
Feels Like 67°F  
Humidity 86% Dew Point 63°F Wind Calm 0 MPH Barometer 29.87 in.758.7 mm
Solar Rad 0 w/m2
Report from 0.5 miles SSE of central Altadena at

Current Weather  

Clear 67°F
Feels Like 67°F  
Humidity 86% Dew Point 63°F Wind Calm 0 MPH Barometer 29.87 in.758.7 mm
Solar Rad 0 w/m2
Report from 0.5 miles SSE of central Altadena at

Forecast at a Glance

FriSep 19
Fri Sep 19: Clear, Low 62°F
 
62°
SatSep 20
Sat Sep 20: Sunny, High 85°F, Low 61°F
85°
61°
SunSep 21
Sun Sep 21: Chance Rain Showers, High 83°F, Low 60°F
20%
83°
60°
MonSep 22
Mon Sep 22: Chance Rain Showers, High 85°F, Low 63°F
20%
85°
63°
TueSep 23
Tue Sep 23: Thunderstorms, High 83°F, Low 62°F
30%
83°
62°
WedSep 24
Wed Sep 24: Sunny, High 84°F, Low 62°F
10%
84°
62°
ThuSep 25
Thu Sep 25: Sunny, High 85°F, Low 62°F
85°
62°

This Date in Weather History

1909 - A large and deadly Category 3 hurricane made landfall near Grand Isle, Louisiana during the late evening hours. The states of Louisiana and Mississippi showed catastrophic damage resulting in 371 deaths and $265 million in damage

More on this and other weather history

Altadena 7 Day Weather Forecast Details

Friday Sep 19

Clear

Night: Mostly clear, with a low around 62. Southeast wind around 0 mph.

Saturday Sep 20

Sunny

Day: Sunny, with a high near 85. South wind 0 to 5 mph.

Clear

Night: Mostly clear, with a low around 61. North northeast wind around 5 mph.

Sunday Sep 21

Chance Rain Showers

Day: A slight chance of rain showers after 11am. Sunny, with a high near 83. West southwest wind 5 to 10 mph. Chance of precipitation is 20%.

Clear

Night: A slight chance of rain showers before 11pm. Mostly clear, with a low around 60. South wind 0 to 5 mph. Chance of precipitation is 20%.

Monday Sep 22

Chance Rain Showers

Day: A slight chance of rain showers after 11am. Mostly sunny, with a high near 85. Chance of precipitation is 20%.

Chance Rain Showers

Night: A chance of rain showers. Partly cloudy, with a low around 63.

Tuesday Sep 23

Thunderstorms

Day: A chance of rain showers before 11am, then a slight chance of showers and thunderstorms between 11am and 5pm. Mostly sunny, with a high near 83.

Clear

Night: Mostly clear, with a low around 62.

Wednesday Sep 24

Sunny

Day: Sunny, with a high near 84.

Clear

Night: Mostly clear, with a low around 62.

Thursday Sep 25

Sunny

Day: Sunny, with a high near 85.

Clear

Night: Mostly clear, with a low around 62.

Friday Sep 26

Sunny

Day: Sunny, with a high near 86.

Sun & Moon   Monthly

First Light 6:14 AM

Sunrise 6:39 AM

Sunset 6:55 PM

Last Light 7:20 PM

Moonrise 4:36 AM

Moonset 6:04 PM

Moon Phase
Airport Delays - Check over 300 airports
Data costs money. Servers cost money. Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by disabling your ad blocker, contribute to WeatherForYou.com by buying me a coffee or subscribe to our ClearSky ad-free service.
Buy me a coffee

Weather Near Altadena

Rowland Heights, CA

Encino, CA

Contiguous United States Extremes

Fri's High Temperature
104 at 4 Miles South Of Tolleson, AZ

Fri's Low Temperature
23 at 4 Miles Northwest Of Grand Lake, CO and 16 Miles West Of Redfeather Lakes, CO

Weather Folklore

Guitar strings shorten before a rain.

Ad Free Weather
Current subscribers - login to your ClearSky account

About Altadena, California

Altadena (AL-tə-DEE-nə) is an unincorporated area, and census-designated place in the San Gabriel Valley and the Verdugos regions of Los Angeles County, California. Directly north of Pasadena, it is located approximately 14 miles (23 km) from Downtown Los Angeles. Its population was 42,846 at the 2020 census, up slightly from a 2010 figure of 42,777. In early 2025, the community was severely impacted by the Eaton Fire.

Content from Wikipedia, licensed under CC BY-SA 3.0.