S
M
T
W
T
F
S
30
71°
60°
31
70°
60°
1
71°
61°
2
76°
61°
3
78°
61°
4
82°
63°
5
82°
65°
6
82°
65°
7
81°
66°
8
73°
64°
9
72°
63°
10
69°
60°
11
68°
60°
12
69°
60°
13
70°
60°
14
72°
63°
15
72°
64°
16
76°
61°
17
75°
60°
18
68°
60°
19
77°
61°
20
78°
61°
21
82°
62°
22
77°
62°
23
74°
65°
24
72°
64°
25
N/A
26
75°
54°
27
80°
59°
28
76°
58°
29
72°
55°
30
75°
53°
1
74°
52°
2
77°
58°
3
79°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Chatsworth
Chatsworth's September 2026 forecast shows daily high temperatures ranging from 72° to 80°, with overnight lows between 52° and 62°. The average high for September is 76° with an average low of 56°. 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 Chatsworth. See also: October | November | December.
