S
M
T
W
T
F
S
30
88°
58°
31
81°
60°
1
81°
65°
2
86°
58°
3
86°
64°
4
85°
66°
5
89°
60°
6
88°
56°
7
79°
56°
8
79°
55°
9
80°
59°
10
83°
62°
11
84°
55°
12
78°
55°
13
77°
54°
14
78°
61°
15
83°
56°
16
85°
52°
17
77°
51°
18
74°
51°
19
74°
52°
20
75°
52°
21
73°
51°
22
72°
51°
23
74°
52°
24
74°
55°
25
79°
57°
26
80°
57°
27
80°
49°
28
75°
56°
29
75°
56°
30
78°
54°
1
71°
53°
2
73°
49°
3
69°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Oakley
Oakley's September 2026 forecast shows daily high temperatures ranging from 69° to 89°, with overnight lows between 46° and 66°. The average high for September is 79° 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 Oakley. See also: October | November | December.
