S
M
T
W
T
F
S
27
84°
72°
28
84°
63°
29
86°
61°
30
90°
66°
1
93°
61°
2
106°
65°
3
106°
76°
4
102°
77°
5
107°
70°
6
105°
70°
7
102°
67°
8
98°
66°
9
92°
65°
10
85°
64°
11
84°
62°
12
79°
60°
13
84°
59°
14
84°
60°
15
86°
60°
16
87°
59°
17
86°
58°
18
80°
55°
19
83°
59°
20
83°
58°
21
82°
59°
22
83°
58°
23
82°
58°
24
82°
57°
25
81°
58°
26
81°
57°
27
77°
52°
28
73°
51°
29
73°
49°
30
74°
49°
31
74°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in El Cajon
El Cajon's October 2026 forecast shows daily high temperatures ranging from 73° to 107°, with overnight lows between 48° and 70°. The average high for October is 85° with an average low of 59°. 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 El Cajon. See also: November | December | January.
