S
M
T
W
T
F
S
28
79°
63°
29
77°
63°
30
75°
62°
1
82°
63°
2
83°
64°
3
80°
61°
4
76°
57°
5
76°
63°
6
84°
65°
7
84°
64°
8
79°
63°
9
80°
63°
10
81°
64°
11
83°
64°
12
84°
66°
13
78°
56°
14
78°
57°
15
79°
61°
16
81°
62°
17
86°
56°
18
81°
57°
19
81°
60°
20
83°
56°
21
85°
56°
22
79°
60°
23
81°
64°
24
83°
66°
25
87°
60°
26
85°
62°
27
81°
61°
28
78°
65°
29
82°
59°
30
84°
57°
31
83°
57°
1
84°
62°
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 75° to 87°, with overnight lows between 56° and 66°. The average high for July is 81° with an average low of 61°. 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.
