S
M
T
W
T
F
S
29
91°
63°
30
87°
72°
1
85°
64°
2
87°
60°
3
90°
64°
4
90°
64°
5
92°
68°
6
90°
70°
7
78°
64°
8
85°
60°
9
83°
68°
10
86°
64°
11
89°
68°
12
88°
73°
13
87°
70°
14
86°
63°
15
91°
60°
16
88°
72°
17
81°
66°
18
78°
64°
19
82°
60°
20
78°
66°
21
81°
60°
22
82°
60°
23
89°
61°
24
94°
72°
25
82°
71°
26
83°
70°
27
88°
72°
28
89°
72°
29
90°
69°
30
88°
68°
31
72°
59°
1
76°
55°
2
77°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Waterloo
Waterloo's July 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for July 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 July weather will actually feel in Waterloo. See also: August | September | October.
