S
M
T
W
T
F
S
27
74°
56°
28
76°
55°
29
64°
43°
30
74°
53°
1
75°
52°
2
68°
52°
3
67°
52°
4
70°
53°
5
71°
51°
6
69°
46°
7
61°
44°
8
60°
38°
9
58°
37°
10
58°
42°
11
62°
46°
12
67°
48°
13
67°
48°
14
70°
47°
15
67°
45°
16
57°
42°
17
55°
36°
18
54°
34°
19
56°
44°
20
60°
46°
21
64°
46°
22
63°
45°
23
54°
45°
24
59°
44°
25
61°
43°
26
58°
38°
27
56°
34°
28
50°
41°
29
61°
43°
30
61°
31°
31
57°
30°
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 50° to 76°, with overnight lows between 30° and 56°. The average high for October is 63° 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 Waterloo. See also: November | December | January.
