S
M
T
W
T
F
S
27
90°
65°
28
82°
63°
29
86°
64°
30
86°
64°
1
88°
68°
2
101°
76°
3
100°
76°
4
100°
75°
5
101°
75°
6
100°
74°
7
97°
72°
8
96°
68°
9
88°
64°
10
81°
66°
11
69°
64°
12
63°
51°
13
72°
56°
14
82°
61°
15
88°
66°
16
94°
66°
17
93°
64°
18
93°
63°
19
87°
62°
20
86°
62°
21
84°
61°
22
86°
61°
23
86°
62°
24
85°
61°
25
79°
55°
26
82°
60°
27
81°
59°
28
81°
58°
29
80°
58°
30
80°
57°
31
79°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Altadena
Altadena's October 2026 forecast shows daily high temperatures ranging from 63° to 94°, with overnight lows between 51° and 66°. The average high for October is 83° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Altadena. See also: November | December | January.
