weathermetro
Cities / United States
/ California
☀️ Altadena weather
Clear sky. .
Feels like 26° Wind 7 km/h SW Humidity 58% Pressure 1008 hPa UV 0 Air Fair ☀ 06:11 - 19:43
Right now it is 25° in Altadena with clear skies and today's high is 31° with an overnight low of 17° . The sun rises at 06:11 and sets at 19:43, giving 13h 32m of daylight. Over the coming week highs range from 27° to 35° .
Altadena is in California, United States, sitting 414 m above sea level, with a population of about 43,000. Local time is America/Los_Angeles (UTC−7), and every time on this page is shown in it.
Next 24 hours - temperature
16°
22°
27°
27°
17°
18:00 · 26.1° · 0 mm
19:00 · 24° · 0 mm
20:00 · 21.5° · 0 mm
21:00 · 19.8° · 0 mm
22:00 · 18.8° · 0 mm
23:00 · 18.1° · 0 mm
00:00 · 17.2° · 0 mm
01:00 · 16.9° · 0 mm
02:00 · 16.8° · 0 mm
03:00 · 16.7° · 0 mm
04:00 · 16.7° · 0 mm
05:00 · 16.8° · 0 mm
06:00 · 16.9° · 0 mm
07:00 · 17° · 0 mm
08:00 · 17.8° · 0 mm
09:00 · 18.6° · 0 mm
10:00 · 20.2° · 0 mm
11:00 · 20.3° · 0 mm
12:00 · 23.9° · 0 mm
13:00 · 25.9° · 0 mm
14:00 · 27° · 0 mm
15:00 · 27° · 0 mm
16:00 · 25.8° · 0 mm
17:00 · 24.6° · 0 mm
Precipitation
18:00 · 0 mm
18:00
19:00 · 0 mm
20:00 · 0 mm
21:00 · 0 mm
21:00
22:00 · 0 mm
23:00 · 0 mm
00:00 · 0 mm
00:00
01:00 · 0 mm
02:00 · 0 mm
03:00 · 0 mm
03:00
04:00 · 0 mm
05:00 · 0 mm
06:00 · 0 mm
06:00
07:00 · 0 mm
08:00 · 0 mm
09:00 · 0 mm
09:00
10:00 · 0 mm
11:00 · 0 mm
12:00 · 0 mm
12:00
13:00 · 0 mm
14:00 · 0 mm
15:00 · 0 mm
15:00
16:00 · 0 mm
17:00 · 0 mm
Hour by hour
TIME TEMP FEELS RAIN CONDITIONS
18:00
☀️
26.1°
26.6°
-
Clear sky
19:00
☀️
24°
24.7°
-
Clear sky
20:00
⛅
21.5°
22.5°
-
Partly cloudy
21:00
☁️
19.8°
21.1°
-
Overcast
22:00
☁️
18.8°
20.2°
-
Overcast
23:00
☁️
18.1°
19.6°
-
Overcast
00:00
☁️
17.2°
18.5°
-
Overcast
01:00
☁️
16.9°
17.9°
-
Overcast
02:00
☁️
16.8°
18.3°
-
Overcast
03:00
☁️
16.7°
18.4°
-
Overcast
04:00
☁️
16.7°
18.4°
-
Overcast
05:00
☁️
16.8°
18.6°
-
Overcast
☀️
TodayAugust 12th
Avg 23° Low 17° at 06:00
High 31° at 15:00
Wind ~14 km/h
Clear
Clear
Partly Cloudy
Clear
Cloudy
00:00
21°
02:00
19°
04:00
18°
06:00
17°
08:00
20°
10:00
23°
12:00
27°
14:00
31°
16:00
30°
18:00
26°
20:00
22°
22:00
19°
☁️
ThursdayAugust 13th
Avg 20° Low 17° at 03:00
High 27° at 14:00
Wind ~14 km/h
Cloudy
00:00
17°
02:00
17°
04:00
17°
06:00
17°
08:00
18°
10:00
20°
12:00
24°
14:00
27°
16:00
26°
18:00
23°
20:00
20°
22:00
18°
☀️
FridayAugust 14th
Avg 21° Low 17° at 06:00
High 28° at 15:00
Feels 25° Wind ~14 km/h
Cloudy
Clear
00:00
17°
02:00
17°
04:00
17°
06:00
17°
08:00
17°
10:00
20°
12:00
25°
14:00
27°
16:00
28°
18:00
26°
20:00
23°
22:00
22°
☁️
SaturdayAugust 15th
Avg 24° Low 20° at 06:00
High 29° at 15:00
Feels 27° Wind ~13 km/h
Clear
Cloudy
00:00
21°
02:00
20°
04:00
20°
06:00
20°
08:00
21°
10:00
24°
12:00
27°
14:00
29°
16:00
29°
18:00
28°
20:00
25°
22:00
24°
☀️
SundayAugust 16th
Avg 26° Low 22° at 03:00
High 32° at 14:00
Feels 29° Wind ~14 km/h
Cloudy
Clear
Clear
Clear
00:00
23°
02:00
23°
04:00
22°
06:00
22°
08:00
24°
10:00
26°
12:00
29°
14:00
32°
16:00
31°
18:00
30°
20:00
28°
22:00
27°
☀️
MondayAugust 17th
Avg 28° Low 24° at 05:00
High 34° at 15:00
Feels 31° Wind ~13 km/h
Clear
Clear
00:00
25°
02:00
25°
04:00
24°
06:00
24°
08:00
26°
10:00
28°
12:00
31°
14:00
33°
16:00
34°
18:00
32°
20:00
30°
22:00
29°
☀️
TuesdayAugust 18th
Avg 30° Low 26° at 04:00
High 35° at 15:00
Feels 33° Wind ~14 km/h
Clear
00:00
28°
02:00
26°
04:00
26°
06:00
26°
08:00
28°
10:00
30°
12:00
33°
14:00
35°
16:00
35°
18:00
33°
20:00
30°
22:00
28°
☀️
WednesdayAugust 19th
Avg 27° Low 24° at 03:00
High 32° at 15:00
Feels 30° Wind ~14 km/h
Clear
00:00
26°
02:00
24°
04:00
24°
06:00
24°
08:00
25°
10:00
27°
12:00
30°
14:00
32°
16:00
32°
18:00
30°
20:00
27°
22:00
26°
☀️
ThursdayAugust 20th
Avg 27° Low 22° at 04:00
High 33° at 15:00
Feels 29° Wind ~14 km/h
Clear
00:00
24°
02:00
23°
04:00
22°
06:00
23°
08:00
24°
10:00
27°
12:00
30°
14:00
32°
16:00
32°
18:00
30°
20:00
27°
22:00
26°
🌤️
FridayAugust 21st
Avg 28° Low 24° at 04:00
High 33° at 14:00
Feels 30° Wind ~13 km/h
Partly Cloudy
Cloudy
Clear
00:00
25°
02:00
24°
04:00
24°
06:00
24°
08:00
25°
10:00
28°
12:00
31°
14:00
33°
16:00
33°
18:00
31°
20:00
28°
22:00
27°
⛅
SaturdayAugust 22nd
Avg 28° Low 24° at 05:00
High 34° at 15:00
Feels 32° Wind ~12 km/h
Partly Cloudy
Clear
Partly Cloudy
Partly Cloudy
00:00
26°
02:00
25°
04:00
24°
06:00
24°
08:00
25°
10:00
28°
12:00
31°
14:00
34°
16:00
34°
18:00
32°
20:00
29°
22:00
27°
⛅
SundayAugust 23rd
Avg 28° Low 24° at 04:00
High 34° at 17:00
Feels 32° Wind ~12 km/h
Cloudy
Partly Cloudy
Cloudy
Cloudy
00:00
25°
02:00
25°
04:00
24°
06:00
24°
08:00
25°
10:00
28°
12:00
31°
14:00
32°
16:00
34°
18:00
33°
20:00
30°
22:00
28°
☁️
MondayAugust 24th
Avg 29° Low 25° at 03:00
High 35° at 16:00
Wind ~11 km/h
Partly Cloudy
Cloudy
Partly Cloudy
Cloudy
00:00
26°
02:00
25°
04:00
25°
06:00
26°
08:00
28°
10:00
29°
12:00
31°
14:00
34°
16:00
35°
18:00
33°
20:00
29°
22:00
27°
🌤️
TuesdayAugust 25th
Avg 29° Low 25° at 03:00
High 34° at 14:00
0.3 mm rain Wind ~11 km/h
Rain
Clear
Clear
00:00
26°
0.1mm
02:00
25°
0.1mm
04:00
25°
06:00
26°
08:00
27°
10:00
29°
12:00
32°
14:00
34°
16:00
32°
18:00
31°
20:00
30°
22:00
29°
⛅
WednesdayAugust 26th
Avg 30° Low 27° at 23:00
High 34° at 14:00
Feels 32° Wind ~13 km/h
Clear
Cloudy
Clear
Cloudy
Clear
00:00
28°
02:00
27°
04:00
27°
06:00
27°
08:00
28°
10:00
30°
12:00
32°
14:00
34°
16:00
34°
18:00
32°
20:00
29°
22:00
27°
☁️
ThursdayAugust 27th
Avg 26° Low 25° at 05:00
High 30° at 17:00
0.6 mm rain Wind ~10 km/h
Partly Cloudy
Rain
Cloudy
00:00
26°
02:00
25°
04:00
25°
06:00
25°
0.1mm
08:00
25°
0.1mm
10:00
25°
0.1mm
12:00
27°
14:00
28°
16:00
30°
18:00
29°
20:00
26°
22:00
25°
Sun
☀️ Sunrise 06:11 · Sunset 19:43
13h 32m of daylight · America/Los_Angeles
Air quality
PM2.5 14.3 µg/m³ - Fair
Fine for almost everyone; unusually sensitive people may notice it on a long run.
Source: Copernicus CAMS, updated hourly.
Common questions about Altadena weather
Will it rain in Altadena today?
No rain is in the forecast for Altadena today.
What is the temperature in Altadena right now?
It is 25° in Altadena right now. Today runs between a low of 17° and a high of 31° .
What time is sunrise and sunset in Altadena?
The sun rises at 06:11 and sets at 19:43 local time in Altadena today, giving 13h 32m of daylight.
What is the air quality in Altadena?
PM2.5 in Altadena is currently 14.3 µg/m³, which counts as Fair on the European air-quality index. Fine for almost everyone; unusually sensitive people may notice it on a long run.
How accurate is the Altadena forecast, and how far ahead does it go?
This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Altadena best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.
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© 2026 WeatherMetro · Weather data: ECMWF, NOAA, DWD, Météo-France, ECCC, MeteoSwiss and others (CC-BY 4.0) · Air quality & history: Copernicus CAMS / C3S · Location data: GeoNames (CC-BY) · Alerts: NWS, MeteoAlarm, ECCC