S
M
T
W
T
F
S
28
81°
65°
29
85°
64°
30
87°
66°
1
93°
70°
2
98°
79°
3
97°
76°
4
92°
71°
5
79°
67°
6
67°
63°
7
70°
61°
8
85°
69°
9
84°
72°
10
89°
71°
11
83°
67°
12
81°
68°
13
84°
65°
14
89°
68°
15
89°
69°
16
87°
65°
17
86°
64°
18
84°
65°
19
85°
66°
20
84°
66°
21
82°
65°
22
80°
62°
23
82°
63°
24
86°
65°
25
81°
63°
26
80°
64°
27
86°
69°
28
85°
68°
29
86°
68°
30
85°
67°
31
80°
67°
1
82°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Cos Cob
Cos Cob's July 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 62° and 72°. 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 Cos Cob. See also: August | September | October.