S
M
T
W
T
F
S
31
69°
33°
1
65°
40°
2
77°
48°
3
80°
54°
4
87°
60°
5
89°
64°
6
92°
67°
7
73°
52°
8
63°
54°
9
69°
53°
10
75°
59°
11
81°
60°
12
75°
59°
13
77°
58°
14
79°
62°
15
81°
57°
16
72°
54°
17
73°
55°
18
74°
57°
19
75°
57°
20
75°
58°
21
74°
56°
22
75°
56°
23
75°
57°
24
76°
63°
25
76°
60°
26
77°
58°
27
77°
63°
28
81°
64°
29
78°
60°
30
77°
59°
1
76°
59°
2
77°
62°
3
79°
65°
4
80°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Watertown
Watertown's June 2026 forecast shows daily high temperatures ranging from 63° to 92°, with overnight lows between 48° and 67°. The average high for June is 77° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Watertown. See also: July | August | September.