S
M
T
W
T
F
S
27
80°
63°
28
75°
64°
29
73°
64°
30
73°
66°
1
68°
50°
2
71°
46°
3
78°
49°
4
75°
48°
5
75°
54°
6
79°
52°
7
78°
47°
8
72°
53°
9
78°
59°
10
81°
59°
11
80°
49°
12
69°
50°
13
65°
47°
14
66°
44°
15
67°
38°
16
63°
39°
17
64°
40°
18
62°
37°
19
59°
41°
20
56°
43°
21
57°
42°
22
66°
43°
23
67°
38°
24
54°
31°
25
56°
41°
26
60°
40°
27
65°
42°
28
64°
43°
29
64°
43°
30
65°
39°
31
56°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Missouri Valley
Missouri Valley's October 2026 forecast shows daily high temperatures ranging from 54° to 81°, with overnight lows between 31° and 59°. The average high for October is 66° with an average low of 44°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Missouri Valley. See also: November | December | January.