S
M
T
W
T
F
S
27
75°
44°
28
72°
47°
29
75°
48°
30
73°
48°
1
71°
60°
2
63°
43°
3
63°
39°
4
68°
38°
5
56°
35°
6
59°
30°
7
70°
47°
8
61°
40°
9
65°
39°
10
68°
52°
11
60°
53°
12
68°
55°
13
66°
38°
14
58°
40°
15
56°
48°
16
63°
39°
17
55°
39°
18
52°
39°
19
56°
42°
20
55°
39°
21
56°
38°
22
48°
34°
23
46°
33°
24
46°
37°
25
53°
40°
26
55°
38°
27
52°
30°
28
44°
29°
29
43°
34°
30
46°
39°
31
52°
34°
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 68°, with overnight lows between 29° and 55°. The average high for October is 55° with an average low of 40°. 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.