S
M
T
W
T
F
S
27
61°
54°
28
N/A
29
65°
54°
30
75°
57°
1
72°
62°
2
71°
52°
3
62°
41°
4
64°
41°
5
61°
46°
6
57°
38°
7
71°
39°
8
64°
46°
9
67°
41°
10
67°
54°
11
60°
54°
12
66°
58°
13
64°
40°
14
50°
40°
15
53°
41°
16
57°
42°
17
54°
42°
18
53°
40°
19
59°
44°
20
57°
42°
21
55°
38°
22
52°
41°
23
50°
38°
24
49°
38°
25
56°
44°
26
60°
43°
27
57°
33°
28
47°
33°
29
47°
35°
30
50°
41°
31
55°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Waterloo
Waterloo's October 2026 forecast shows daily high temperatures ranging from 47° to 67°, with overnight lows between 33° and 58°. The average high for October is 56° with an average low of 42°. 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. See also: November | December | January.
