S
M
T
W
T
F
S
28
81°
59°
29
78°
57°
30
82°
56°
1
76°
54°
2
75°
54°
3
76°
55°
4
79°
57°
5
82°
59°
6
79°
55°
7
78°
56°
8
81°
56°
9
80°
61°
10
79°
56°
11
83°
55°
12
78°
56°
13
80°
55°
14
79°
56°
15
80°
56°
16
80°
57°
17
81°
60°
18
85°
60°
19
84°
61°
20
83°
62°
21
84°
63°
22
86°
61°
23
84°
62°
24
86°
62°
25
85°
57°
26
80°
57°
27
80°
59°
28
84°
63°
29
85°
64°
30
86°
63°
31
87°
57°
1
85°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Waterbury
Waterbury's July 2026 forecast shows daily high temperatures ranging from 75° to 87°, with overnight lows between 54° and 64°. The average high for July is 81° with an average low of 58°. 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 Waterbury. See also: August | September | October.