S
M
T
W
T
F
S
27
N/A
28
N/A
29
92°
66°
30
88°
62°
1
93°
64°
2
102°
70°
3
100°
78°
4
100°
75°
5
102°
77°
6
101°
77°
7
100°
74°
8
99°
68°
9
90°
64°
10
82°
64°
11
73°
59°
12
67°
53°
13
73°
58°
14
79°
59°
15
84°
60°
16
86°
63°
17
84°
62°
18
84°
64°
19
81°
61°
20
83°
62°
21
78°
56°
22
81°
59°
23
82°
60°
24
81°
60°
25
81°
59°
26
80°
59°
27
80°
58°
28
79°
58°
29
80°
57°
30
79°
58°
31
78°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in San Fernando Valley
San Fernando Valley's October 2026 forecast shows daily high temperatures ranging from 67° to 99°, with overnight lows between 53° and 68°. The average high for October is 81° 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 San Fernando Valley. See also: November | December | January.