S
M
T
W
T
F
S
30
96°
64°
31
93°
66°
1
97°
66°
2
98°
65°
3
97°
63°
4
93°
60°
5
92°
59°
6
91°
60°
7
90°
57°
8
88°
58°
9
89°
59°
10
90°
61°
11
92°
63°
12
94°
62°
13
96°
61°
14
95°
58°
15
92°
57°
16
89°
59°
17
89°
63°
18
93°
62°
19
93°
62°
20
94°
61°
21
94°
62°
22
87°
59°
23
88°
55°
24
86°
54°
25
86°
54°
26
84°
55°
27
84°
57°
28
87°
55°
29
87°
55°
30
91°
58°
1
Hist. Avg.
87°
60°
2
Hist. Avg.
86°
60°
3
Hist. Avg.
86°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Buttonwillow
Buttonwillow's September 2026 forecast shows daily high temperatures ranging from 84° to 98°, with overnight lows between 54° and 66°. The average high for September is 91° 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 Buttonwillow. See also: October | November | December.
