S
M
T
W
T
F
S
26
72°
45°
27
64°
47°
28
56°
41°
29
63°
37°
30
58°
40°
1
59°
38°
2
69°
30°
3
77°
50°
4
82°
45°
5
60°
43°
6
62°
37°
7
74°
43°
8
79°
46°
9
78°
47°
10
74°
37°
11
86°
44°
12
82°
57°
13
80°
43°
14
83°
56°
15
93°
57°
16
88°
57°
17
85°
61°
18
68°
53°
19
60°
45°
20
59°
39°
21
63°
49°
22
72°
55°
23
77°
50°
24
84°
55°
25
90°
64°
26
89°
63°
27
88°
56°
28
88°
62°
29
84°
69°
30
82°
65°
31
87°
68°
1
86°
67°
2
83°
63°
3
82°
64°
4
84°
67°
5
88°
67°
6
91°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Council Bluffs
Council Bluffs's May 2026 forecast shows daily high temperatures ranging from 82° to 91°, with overnight lows between 63° and 67°. The average high for May is 86° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Council Bluffs. See also: June | July | August.