S
M
T
W
T
F
S
28
93°
70°
29
95°
72°
30
91°
72°
1
93°
66°
2
94°
70°
3
94°
72°
4
94°
74°
5
90°
72°
6
89°
71°
7
90°
73°
8
88°
71°
9
91°
73°
10
89°
72°
11
90°
70°
12
92°
71°
13
90°
72°
14
91°
70°
15
90°
72°
16
87°
72°
17
87°
73°
18
87°
72°
19
88°
72°
20
87°
70°
21
88°
72°
22
90°
73°
23
89°
73°
24
87°
72°
25
88°
73°
26
87°
73°
27
85°
72°
28
86°
73°
29
85°
72°
30
86°
73°
31
89°
73°
1
90°
72°
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 85° to 94°, with overnight lows between 66° and 74°. The average high for July is 89° with an average low of 72°. 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.
