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
68°
58°
12
64°
52°
13
73°
56°
14
81°
61°
15
90°
69°
16
93°
73°
17
91°
67°
18
86°
63°
19
83°
62°
20
82°
62°
21
74°
58°
22
66°
57°
23
71°
56°
24
79°
58°
25
81°
58°
26
80°
56°
27
71°
56°
28
73°
57°
29
71°
59°
30
71°
56°
31
68°
58°
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 68° to 73°, with overnight lows between 56° and 59°. The average high for October is 71° with an average low of 57°. 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.
