S
M
T
W
T
F
S
28
82°
61°
29
86°
60°
30
85°
63°
1
91°
66°
2
98°
73°
3
100°
72°
4
92°
67°
5
83°
67°
6
70°
61°
7
74°
57°
8
81°
61°
9
87°
63°
10
88°
62°
11
86°
62°
12
85°
61°
13
84°
60°
14
82°
61°
15
84°
59°
16
77°
56°
17
79°
59°
18
79°
58°
19
82°
60°
20
82°
63°
21
78°
63°
22
78°
62°
23
80°
63°
24
79°
62°
25
80°
62°
26
81°
61°
27
83°
63°
28
84°
62°
29
84°
63°
30
83°
64°
31
85°
64°
1
84°
63°
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 70° to 100°, with overnight lows between 56° and 73°. The average high for July is 83° with an average low of 62°. 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.
