S
M
T
W
T
F
S
31
74°
42°
1
66°
47°
2
78°
56°
3
82°
58°
4
84°
63°
5
89°
66°
6
88°
68°
7
81°
54°
8
66°
54°
9
72°
56°
10
77°
60°
11
81°
61°
12
77°
61°
13
80°
60°
14
81°
62°
15
82°
59°
16
73°
56°
17
73°
56°
18
75°
57°
19
77°
58°
20
80°
58°
21
78°
59°
22
76°
58°
23
76°
62°
24
77°
64°
25
78°
59°
26
76°
58°
27
80°
64°
28
83°
65°
29
80°
62°
30
78°
60°
1
77°
60°
2
78°
61°
3
80°
66°
4
84°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Cos Cob
Cos Cob's June 2026 forecast shows daily high temperatures ranging from 66° to 89°, with overnight lows between 54° and 68°. The average high for June is 79° with an average low of 60°. 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 Cos Cob. See also: July | August | September.
