Altadena, CA Weather Forecast

Local 7-day forecast

64°

Light Rain Likely

Track current conditions, temperature changes, wind, and the full daily outlook for Altadena, CA in one place.

Sunday, April 12, 2026

Wind: 5 to 10 mph SW

Sunday

Rain likely. Partly sunny, with a high near 64.

Local 7-day forecast

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: Apr 9, 2026 12:19 PM PDT.

The active forecast window currently covers Apr 12 to Apr 15, 2026 for Altadena, CA.

Page Snapshot

Page focus: city weather
Forecast window: Apr 12 to Apr 15, 2026
Latest sync: Apr 9, 2026 12:19 PM PDT
Forecast office: LOX
Source: NOAA / NWS

Next High

64°F

Sunday

Next Low

45°F

Sunday Night

Rain Outlook

Periods mentioning precipitation

Windiest

5 to 10 mph

Sunday

Daily Outlook

Today

Apr 12

Light Rain Likely

64 °F

/ 45°F

Wind 5 to 10 mph

Mon

Apr 13

Sunny

67 °F

/ 47°F

Wind 0 to 10 mph

Tue

Apr 14

Sunny

74 °F

/ 51°F

Wind 0 to 10 mph

Wed

Apr 15

Mostly Sunny

77 °F

/ 54°F

Wind 0 to 5 mph

This Week in Altadena

Wednesday looks like the warmest upcoming period in Altadena at 77 degrees F.

Sunday Night is the coolest period ahead with temperatures near 45 degrees F.

The strongest winds are forecast for Sunday at about 5 to 10 mph SW.

Precipitation is mentioned in 2 upcoming forecast periods.

Forecast Details

Last updated: Apr 9, 2026 12:19 PM PDT
Coverage: 5 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 source

Extended Forecast

Sunday Night

Apr 12

45°F

Chance Light Rain

0 to 10 mph W

A chance of rain before 5am. Partly cloudy, with a low around 45.

Monday

Apr 13

67°F

Sunny

0 to 10 mph W

Sunny, with a high near 67.

Monday Night

Apr 13

47°F

Mostly Clear

0 to 10 mph N

Mostly clear, with a low around 47.

Tuesday

Apr 14

74°F

Sunny

0 to 10 mph SW

Sunny, with a high near 74.

Tuesday Night

Apr 14

51°F

Mostly Clear

0 to 10 mph N

Mostly clear, with a low around 51.

Wednesday

Apr 15

77°F

Mostly Sunny

0 to 5 mph S

Mostly sunny, with a high near 77.

Wednesday Night

Apr 15

54°F

Mostly Cloudy

0 to 5 mph SSE

Mostly cloudy, with a low around 54.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Sunday Apr 12	Light Rain Likely	64°F	5 to 10 mph SW	Rain likely. Partly sunny, with a high near 64.
Sunday Night Apr 12	Chance Light Rain	45°F	0 to 10 mph W	A chance of rain before 5am. Partly cloudy, with a low around 45.
Monday Apr 13	Sunny	67°F	0 to 10 mph W	Sunny, with a high near 67.
Monday Night Apr 13	Mostly Clear	47°F	0 to 10 mph N	Mostly clear, with a low around 47.
Tuesday Apr 14	Sunny	74°F	0 to 10 mph SW	Sunny, with a high near 74.
Tuesday Night Apr 14	Mostly Clear	51°F	0 to 10 mph N	Mostly clear, with a low around 51.
Wednesday Apr 15	Mostly Sunny	77°F	0 to 5 mph S	Mostly sunny, with a high near 77.
Wednesday Night Apr 15	Mostly Cloudy	54°F	0 to 5 mph SSE	Mostly cloudy, with a low around 54.

Nearby Forecasts

Explore weather pages for nearby cities and major places around Altadena.

Region Links

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Eaton canyon from the air image

Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.