Altadena, CA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Clear 66°F
Feels Like 66°F  
Humidity 68% Dew Point 55°F Wind NNW 1 MPH Gusts 2 Barometer N/A
Report from a MADIS/MESONET weather station 0.2 miles SW of central Altadena
at

Point Forecast at a Glance

WedNov 12
Wed Nov 12: Mostly Cloudy, High 74F, Low 56F
74
56
ThuNov 13
Thu Nov 13: Rain With Partly Sunny, High 71F, Low 57F
40%
71
57
FriNov 14
Fri Nov 14: Rain Showers, High 60F, Low 54F
80%
60
54
SatNov 15
Sat Nov 15: Thunderstorms, High 62F, Low 51F
70%
62
51
SunNov 16
Sun Nov 16: Rain Showers, High 61F, Low 51F
50%
61
51
MonNov 17
Mon Nov 17: Rain Showers, High 61F, Low 46F
40%
61
46
TueNov 18
Tue Nov 18: Rain Showers, High 60F, Low 44F
20%
60
44

7-Day Temperature Trend

Week Ahead Summary

Cooling trend continues with high temperatures dropping from 74°F to 60°F. Unsettled weather expected with rain likely on at least 6 days.

Climate Context

This week's forecast shows temperatures running 7°F below the historical average for November. Normal highs for this period are around 71°F with lows around 49°F.

This Date in Weather History

1968 - A severe coastal storm produced high winds and record early snows from Georgia to Maine. Winds reached 90 mph in Massachusetts, and ten inches of snow blanketed interior Maine.

More on this and other weather history

Altadena, CA 7 Day Weather Forecast Details

Wednesday Nov 12

Mostly Cloudy

Day: Mostly cloudy, with a high near 74. South wind around 5 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 56. Southeast wind around 5 mph.

Thursday Nov 13

Rain With Partly Sunny

Day: A chance of rain showers after 4pm. Partly sunny, with a high near 71. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Rain Showers

Night: Rain showers. Cloudy, with a low around 57. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday Nov 14

Rain Showers

Day: Rain showers before 4pm, then showers and thunderstorms likely. Cloudy, with a high near 60. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

Thunderstorms

Night: Showers and thunderstorms likely. Some of the storms could produce heavy rain. Cloudy, with a low around 54. Chance of precipitation is 70%.

Saturday Nov 15

Thunderstorms

Day: Showers and thunderstorms likely. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 62.

Rain Showers

Night: Rain showers. Cloudy, with a low around 51.

Sunday Nov 16

Rain Showers

Day: A chance of rain showers. Mostly cloudy, with a high near 61.

Rain Showers

Night: A chance of rain showers. Mostly cloudy, with a low around 51.

Monday Nov 17

Rain Showers

Day: A chance of rain showers. Mostly cloudy, with a high near 61.

Rain Showers

Night: A chance of rain showers. Mostly cloudy, with a low around 46.

Tuesday Nov 18

Rain Showers

Day: A slight chance of rain showers. Mostly sunny, with a high near 60.

Rain Showers

Night: A chance of rain showers before 4am. Partly cloudy, with a low around 44.


About Altadena, CA

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.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.