S
M
T
W
T
F
S
28
77°
53°
29
78°
56°
30
78°
61°
1
79°
62°
2
81°
58°
3
80°
57°
4
82°
56°
5
86°
54°
6
80°
56°
7
83°
57°
8
85°
61°
9
85°
58°
10
79°
57°
11
84°
57°
12
82°
56°
13
83°
57°
14
81°
58°
15
80°
62°
16
87°
59°
17
85°
62°
18
86°
58°
19
85°
61°
20
80°
63°
21
87°
66°
22
Hist. Avg.
84°
62°
23
Hist. Avg.
84°
62°
24
Hist. Avg.
84°
62°
25
Hist. Avg.
84°
62°
26
Hist. Avg.
84°
62°
27
Hist. Avg.
84°
62°
28
Hist. Avg.
84°
62°
29
Hist. Avg.
84°
62°
30
Hist. Avg.
84°
61°
31
Hist. Avg.
84°
61°
1
Hist. Avg.
84°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Groton
Groton's July 2026 forecast shows daily high temperatures ranging from 77° to 87°, with overnight lows between 53° and 66°. 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 Groton. See also: August | September | October.
