S
M
T
W
T
F
S
28
85°
54°
29
82°
53°
30
82°
68°
1
91°
69°
2
95°
69°
3
89°
64°
4
84°
62°
5
81°
59°
6
79°
60°
7
75°
58°
8
73°
59°
9
78°
56°
10
80°
59°
11
81°
59°
12
80°
55°
13
73°
52°
14
70°
51°
15
71°
51°
16
72°
52°
17
72°
54°
18
73°
56°
19
75°
58°
20
78°
58°
21
79°
59°
22
80°
59°
23
79°
58°
24
79°
59°
25
80°
59°
26
81°
60°
27
81°
60°
28
80°
59°
29
80°
58°
30
78°
55°
31
71°
51°
1
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Groton
Groton's July 2026 forecast shows daily high temperatures ranging from 70° to 95°, with overnight lows between 51° and 69°. The average high for July is 79° with an average low of 58°. 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.
