S
M
T
W
T
F
S
28
81°
66°
29
92°
74°
30
97°
76°
1
100°
76°
2
98°
76°
3
98°
74°
4
92°
72°
5
91°
68°
6
88°
70°
7
85°
68°
8
85°
69°
9
87°
68°
10
88°
74°
11
83°
68°
12
85°
68°
13
80°
62°
14
79°
62°
15
80°
64°
16
81°
67°
17
81°
68°
18
83°
68°
19
81°
67°
20
82°
69°
21
85°
69°
22
83°
68°
23
87°
69°
24
87°
70°
25
88°
69°
26
87°
70°
27
87°
70°
28
86°
69°
29
87°
68°
30
82°
64°
31
79°
62°
1
79°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Millbury
Millbury's July 2026 forecast shows daily high temperatures ranging from 79° to 100°, with overnight lows between 62° and 76°. The average high for July is 86° with an average low of 69°. 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 Millbury. See also: August | September | October.