S
M
T
W
T
F
S
28
84°
53°
29
87°
52°
30
84°
59°
1
91°
68°
2
86°
69°
3
85°
69°
4
78°
59°
5
81°
54°
6
81°
61°
7
84°
61°
8
85°
65°
9
86°
68°
10
80°
58°
11
81°
59°
12
82°
65°
13
83°
67°
14
81°
66°
15
79°
64°
16
78°
63°
17
78°
66°
18
80°
66°
19
81°
65°
20
80°
62°
21
74°
59°
22
74°
60°
23
75°
59°
24
76°
60°
25
80°
66°
26
78°
66°
27
77°
65°
28
77°
66°
29
81°
66°
30
77°
65°
31
80°
67°
1
80°
66°
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 74° to 86°, with overnight lows between 58° and 68°. The average high for July is 80° with an average low of 64°. 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.
