S
M
T
W
T
F
S
28
76°
60°
29
82°
59°
30
84°
57°
1
84°
58°
2
78°
56°
3
77°
55°
4
78°
56°
5
79°
61°
6
81°
55°
7
78°
55°
8
79°
54°
9
78°
54°
10
79°
58°
11
79°
61°
12
80°
58°
13
85°
58°
14
80°
56°
15
79°
55°
16
79°
56°
17
80°
57°
18
82°
62°
19
84°
62°
20
82°
61°
21
83°
63°
22
85°
61°
23
86°
63°
24
85°
61°
25
85°
62°
26
84°
56°
27
79°
56°
28
80°
57°
29
80°
56°
30
81°
57°
31
79°
56°
1
79°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Watertown
Watertown's July 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 54° and 63°. 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 Watertown. See also: August | September | October.
