S
M
T
W
T
F
S
28
84°
63°
29
86°
58°
30
90°
56°
1
95°
71°
2
98°
74°
3
98°
78°
4
92°
71°
5
85°
65°
6
77°
66°
7
69°
62°
8
83°
58°
9
92°
65°
10
88°
65°
11
84°
61°
12
83°
55°
13
88°
68°
14
96°
79°
15
95°
69°
16
91°
64°
17
86°
62°
18
81°
68°
19
82°
64°
20
84°
66°
21
86°
65°
22
81°
62°
23
80°
64°
24
83°
66°
25
84°
64°
26
85°
65°
27
81°
65°
28
80°
67°
29
81°
65°
30
80°
65°
31
80°
66°
1
81°
65°
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 80° to 96°, with overnight lows between 62° and 79°. The average high for July is 84° with an average low of 66°. 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.
