S
M
T
W
T
F
S
27
70°
50°
28
61°
50°
29
65°
47°
30
68°
45°
1
59°
44°
2
57°
38°
3
61°
32°
4
55°
35°
5
57°
42°
6
61°
47°
7
63°
37°
8
64°
33°
9
52°
32°
10
49°
38°
11
56°
37°
12
62°
39°
13
62°
31°
14
52°
33°
15
51°
34°
16
56°
42°
17
58°
42°
18
57°
36°
19
59°
31°
20
49°
33°
21
47°
40°
22
49°
38°
23
54°
29°
24
47°
28°
25
43°
29°
26
44°
29°
27
46°
32°
28
49°
39°
29
53°
39°
30
47°
34°
31
50°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Waterloo Airport
Waterloo Airport's October 2026 forecast shows daily high temperatures ranging from 43° to 70°, with overnight lows between 28° and 50°. The average high for October is 55° with an average low of 37°. 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 Waterloo Airport. See also: November | December | January.