S
M
T
W
T
F
S
27
78°
64°
28
74°
63°
29
73°
66°
30
72°
68°
1
69°
51°
2
69°
46°
3
77°
51°
4
76°
52°
5
78°
49°
6
86°
57°
7
82°
55°
8
83°
51°
9
90°
63°
10
89°
63°
11
90°
66°
12
90°
55°
13
59°
50°
14
59°
46°
15
56°
48°
16
55°
38°
17
61°
35°
18
70°
44°
19
69°
46°
20
73°
49°
21
78°
55°
22
80°
54°
23
78°
60°
24
78°
52°
25
71°
51°
26
66°
49°
27
59°
50°
28
78°
54°
29
69°
44°
30
62°
54°
31
65°
58°
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 ° to °, with overnight lows between ° and °. The average high for October is ° with an average low of °. 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.
