S
M
T
W
T
F
S
27
86°
71°
28
83°
67°
29
85°
64°
30
78°
66°
1
84°
68°
2
103°
66°
3
103°
72°
4
100°
74°
5
104°
75°
6
100°
73°
7
96°
71°
8
94°
68°
9
85°
68°
10
79°
67°
11
76°
65°
12
70°
58°
13
75°
60°
14
78°
61°
15
85°
63°
16
87°
62°
17
87°
63°
18
86°
64°
19
82°
62°
20
83°
63°
21
86°
58°
22
80°
61°
23
80°
62°
24
80°
62°
25
79°
61°
26
80°
62°
27
79°
61°
28
79°
61°
29
78°
60°
30
78°
60°
31
77°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Signal Hill
Signal Hill's October 2026 forecast shows daily high temperatures ranging from 70° to 94°, with overnight lows between 58° and 68°. The average high for October is 81° with an average low of 62°. 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 Signal Hill. See also: November | December | January.