S
M
T
W
T
F
S
31
74°
42°
1
66°
47°
2
75°
46°
3
84°
57°
4
86°
61°
5
89°
70°
6
91°
68°
7
78°
54°
8
69°
54°
9
74°
56°
10
77°
60°
11
84°
64°
12
80°
61°
13
81°
60°
14
80°
62°
15
81°
64°
16
82°
59°
17
74°
56°
18
75°
63°
19
81°
62°
20
80°
59°
21
81°
57°
22
76°
57°
23
76°
58°
24
77°
61°
25
80°
66°
26
84°
65°
27
84°
59°
28
78°
59°
29
80°
60°
30
77°
59°
1
78°
61°
2
79°
60°
3
84°
64°
4
85°
66°
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 69° to 91°, with overnight lows between 54° and 70°. The average high for June is 80° 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 June weather will actually feel in Cos Cob. See also: July | August | September.
