S
M
T
W
T
F
S
28
84°
56°
29
85°
54°
30
79°
55°
1
91°
65°
2
96°
69°
3
93°
69°
4
86°
62°
5
85°
58°
6
78°
60°
7
71°
55°
8
84°
61°
9
87°
68°
10
80°
60°
11
80°
57°
12
84°
58°
13
84°
59°
14
85°
60°
15
84°
59°
16
83°
60°
17
84°
61°
18
83°
60°
19
82°
58°
20
79°
55°
21
77°
54°
22
77°
54°
23
78°
55°
24
81°
55°
25
84°
60°
26
85°
61°
27
85°
61°
28
84°
60°
29
85°
62°
30
85°
62°
31
84°
61°
1
83°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Greenwich
Greenwich's July 2026 forecast shows daily high temperatures ranging from 71° to 87°, with overnight lows between 54° and 68°. The average high for July is 82° 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 July weather will actually feel in Greenwich. See also: August | September | October.