S
M
T
W
T
F
S
30
94°
68°
31
93°
69°
1
93°
67°
2
92°
66°
3
91°
68°
4
91°
64°
5
90°
68°
6
92°
66°
7
91°
67°
8
90°
66°
9
90°
67°
10
91°
67°
11
90°
66°
12
88°
66°
13
85°
65°
14
85°
65°
15
86°
64°
16
87°
65°
17
85°
63°
18
84°
61°
19
84°
63°
20
85°
57°
21
82°
57°
22
83°
58°
23
84°
61°
24
86°
62°
25
87°
63°
26
86°
62°
27
86°
62°
28
81°
58°
29
82°
56°
30
81°
56°
1
Hist. Avg.
80°
54°
2
Hist. Avg.
79°
53°
3
Hist. Avg.
79°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cospers Bend
Cospers Bend's September 2026 forecast shows daily high temperatures ranging from 81° to 94°, with overnight lows between 56° and 69°. The average high for September is 87° with an average low of 64°. 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 Cospers Bend. See also: October | November | December.