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°
62°
7
76°
57°
8
84°
54°
9
90°
62°
10
83°
58°
11
82°
52°
12
85°
56°
13
90°
64°
14
97°
71°
15
92°
58°
16
88°
56°
17
85°
56°
18
81°
59°
19
80°
60°
20
82°
61°
21
86°
60°
22
87°
61°
23
83°
62°
24
87°
59°
25
82°
58°
26
82°
61°
27
79°
56°
28
79°
61°
29
80°
57°
30
77°
56°
31
78°
60°
1
79°
60°
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 77° to 97°, with overnight lows between 52° and 71°. The average high for July is 84° 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.