Altadena, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Altadena, CA in one place.
Sunny, with a high near 86. Northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Local Weather Overview
This forecast page for Altadena, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 15, 2026 2:01 PM PDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Altadena, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 2:01 PM PDT
- Forecast office
- LOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Altadena
Friday looks like the warmest upcoming period in Altadena at 92 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Tonight at about 15 to 20 mph NE.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 2:01 PM PDT
- Coverage
- 8 days
- Time zone
- America/Los_Angeles
- Forecast office
- LOX
- Radar station
- KSOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 66. Northeast wind 15 to 20 mph, with gusts as high as 35 mph.
Sunny, with a high near 92. Northeast wind 10 to 20 mph, with gusts as high as 30 mph.
Mostly clear, with a low around 66. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunny, with a high near 91. East wind 5 to 15 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 64.
Sunny, with a high near 86.
Clear, with a low around 62.
Sunny, with a high near 83.
Mostly clear, with a low around 59.
A chance of rain showers after 11am. Mostly sunny, with a high near 72.
A chance of rain showers. Mostly cloudy, with a low around 56.
Rain showers likely. Partly sunny, with a high near 67.
A chance of rain showers. Mostly cloudy, with a low around 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 15
|
Sunny
|
86°F |
5 to 15 mph
NE
|
|
Tonight
Oct 15
|
Mostly Clear
|
66°F |
15 to 20 mph
NE
|
|
Friday
Oct 16
|
Sunny
|
92°F |
10 to 20 mph
NE
|
|
Friday Night
Oct 16
|
Mostly Clear
|
66°F |
10 to 15 mph
NE
|
|
Saturday
Oct 17
|
Sunny
|
91°F |
5 to 15 mph
E
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
64°F |
5 mph
ENE
|
|
Sunday
Oct 18
|
Sunny
|
86°F |
5 mph
ENE
|
|
Sunday Night
Oct 18
|
Clear
|
62°F |
0 to 5 mph
NNW
|
|
Monday
Oct 19
|
Sunny
|
83°F |
0 to 5 mph
S
|
|
Monday Night
Oct 19
|
Mostly Clear
|
59°F |
5 mph
S
|
|
Tuesday
Oct 20
|
Chance Rain Showers
|
72°F |
5 to 10 mph
SSE
|
|
Tuesday Night
Oct 20
|
Chance Rain Showers
|
56°F |
5 to 10 mph
S
|
|
Wednesday
Oct 21
|
Rain Showers Likely
|
67°F |
5 mph
SSE
|
|
Wednesday Night
Oct 21
|
Chance Rain Showers
|
53°F |
5 to 10 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Altadena.
