S
M
T
W
T
F
S
30
83°
64°
31
79°
59°
1
83°
56°
2
84°
58°
3
84°
58°
4
84°
60°
5
86°
65°
6
88°
64°
7
92°
63°
8
87°
60°
9
86°
63°
10
88°
62°
11
87°
61°
12
86°
62°
13
87°
61°
14
84°
58°
15
87°
62°
16
86°
62°
17
86°
61°
18
82°
60°
19
79°
60°
20
82°
59°
21
84°
60°
22
84°
61°
23
83°
61°
24
80°
58°
25
77°
54°
26
76°
54°
27
75°
53°
28
76°
55°
29
78°
56°
30
78°
58°
1
77°
56°
2
79°
57°
3
83°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Thousand Oaks
Thousand Oaks's September 2026 forecast shows daily high temperatures ranging from 75° to 92°, with overnight lows between 53° and 65°. The average high for September is 83° 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 September weather will actually feel in Thousand Oaks. See also: October | November | December.
