S
M
T
W
T
F
S
28
66°
52°
29
67°
53°
30
67°
50°
1
68°
50°
2
68°
51°
3
72°
55°
4
74°
56°
5
74°
56°
6
73°
55°
7
69°
55°
8
72°
54°
9
70°
53°
10
74°
53°
11
71°
52°
12
70°
56°
13
74°
56°
14
75°
55°
15
76°
56°
16
76°
54°
17
74°
55°
18
75°
56°
19
71°
56°
20
73°
52°
21
72°
53°
22
73°
55°
23
75°
56°
24
71°
54°
25
72°
51°
26
72°
56°
27
73°
53°
28
71°
53°
29
72°
54°
30
73°
51°
31
72°
57°
1
72°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Glastonbury
Glastonbury's July 2026 forecast shows daily high temperatures ranging from 66° to 76°, with overnight lows between 50° and 57°. The average high for July is 72° with an average low of 54°. 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 Glastonbury. See also: August | September | October.