S
M
T
W
T
F
S
30
89°
58°
31
81°
56°
1
79°
54°
2
80°
57°
3
74°
58°
4
80°
56°
5
83°
56°
6
81°
55°
7
85°
59°
8
89°
61°
9
90°
63°
10
88°
60°
11
89°
60°
12
85°
59°
13
84°
60°
14
85°
60°
15
87°
59°
16
83°
60°
17
89°
61°
18
84°
62°
19
89°
61°
20
89°
62°
21
88°
62°
22
88°
60°
23
83°
61°
24
85°
60°
25
88°
62°
26
89°
63°
27
90°
63°
28
89°
62°
29
88°
62°
30
87°
61°
1
88°
62°
2
85°
61°
3
80°
60°
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 74° to 90°, with overnight lows between 55° and 63°. The average high for September is 86° 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 September weather will actually feel in Oakley. See also: October | November | December.
