S
M
T
W
T
F
S
30
86°
63°
31
87°
61°
1
86°
60°
2
85°
61°
3
84°
61°
4
84°
62°
5
85°
62°
6
85°
63°
7
86°
62°
8
84°
62°
9
83°
64°
10
84°
63°
11
86°
62°
12
88°
62°
13
87°
64°
14
88°
66°
15
89°
66°
16
89°
65°
17
88°
65°
18
89°
63°
19
89°
64°
20
88°
65°
21
88°
66°
22
90°
65°
23
90°
65°
24
88°
62°
25
81°
58°
26
79°
59°
27
81°
61°
28
80°
62°
29
84°
59°
30
80°
60°
1
79°
59°
2
79°
61°
3
79°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in La Cañada Flintridge
La Cañada Flintridge's September 2026 forecast shows daily high temperatures ranging from 79° to 90°, with overnight lows between 58° and 66°. The average high for September is 85° 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 September weather will actually feel in La Cañada Flintridge. See also: October | November | December.
