S
M
T
W
T
F
S
30
87°
66°
31
87°
64°
1
86°
58°
2
83°
64°
3
83°
57°
4
77°
56°
5
79°
56°
6
82°
63°
7
83°
55°
8
77°
56°
9
79°
63°
10
77°
62°
11
83°
62°
12
85°
63°
13
85°
60°
14
86°
61°
15
85°
62°
16
74°
55°
17
74°
51°
18
74°
50°
19
Hist. Avg.
78°
55°
20
Hist. Avg.
78°
54°
21
Hist. Avg.
78°
54°
22
Hist. Avg.
77°
54°
23
Hist. Avg.
77°
53°
24
Hist. Avg.
76°
53°
25
Hist. Avg.
76°
52°
26
Hist. Avg.
75°
52°
27
Hist. Avg.
75°
52°
28
Hist. Avg.
74°
51°
29
Hist. Avg.
74°
51°
30
Hist. Avg.
74°
50°
1
Hist. Avg.
73°
50°
2
Hist. Avg.
73°
49°
3
Hist. Avg.
72°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Council Bluffs
Council Bluffs's September 2026 forecast shows daily high temperatures ranging from 74° to 87°, with overnight lows between 50° and 66°. The average high for September is 81° 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 Council Bluffs. See also: October | November | December.
