S
M
T
W
T
F
S
26
84°
56°
27
79°
56°
28
80°
57°
29
80°
56°
30
81°
57°
31
79°
56°
1
79°
56°
2
81°
57°
3
83°
60°
4
81°
60°
5
82°
62°
6
85°
62°
7
79°
61°
8
82°
59°
9
84°
61°
10
85°
62°
11
84°
60°
12
82°
58°
13
84°
57°
14
77°
57°
15
78°
60°
16
83°
60°
17
84°
61°
18
Hist. Avg.
78°
58°
19
Hist. Avg.
78°
58°
20
Hist. Avg.
78°
58°
21
Hist. Avg.
78°
58°
22
Hist. Avg.
78°
58°
23
Hist. Avg.
78°
57°
24
Hist. Avg.
77°
57°
25
Hist. Avg.
77°
57°
26
Hist. Avg.
77°
56°
27
Hist. Avg.
77°
56°
28
Hist. Avg.
76°
56°
29
Hist. Avg.
76°
56°
30
Hist. Avg.
76°
55°
31
Hist. Avg.
76°
55°
1
Hist. Avg.
76°
55°
2
Hist. Avg.
75°
54°
3
Hist. Avg.
75°
54°
4
Hist. Avg.
75°
54°
5
Hist. Avg.
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Waterbury
Waterbury's August 2026 forecast shows daily high temperatures ranging from 77° to 85°, with overnight lows between 56° and 62°. The average high for August is 82° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Waterbury. See also: September | October | November.
