S
M
T
W
T
F
S
28
85°
56°
29
85°
54°
30
79°
56°
1
77°
59°
2
84°
56°
3
83°
55°
4
84°
54°
5
80°
55°
6
81°
54°
7
81°
59°
8
86°
62°
9
87°
64°
10
Hist. Avg.
86°
63°
11
Hist. Avg.
86°
63°
12
Hist. Avg.
86°
63°
13
Hist. Avg.
86°
63°
14
Hist. Avg.
86°
63°
15
Hist. Avg.
86°
63°
16
Hist. Avg.
86°
63°
17
Hist. Avg.
86°
63°
18
Hist. Avg.
86°
63°
19
Hist. Avg.
86°
63°
20
Hist. Avg.
86°
63°
21
Hist. Avg.
86°
63°
22
Hist. Avg.
86°
63°
23
Hist. Avg.
86°
63°
24
Hist. Avg.
86°
63°
25
Hist. Avg.
86°
63°
26
Hist. Avg.
86°
63°
27
Hist. Avg.
86°
63°
28
Hist. Avg.
86°
63°
29
Hist. Avg.
86°
63°
30
Hist. Avg.
86°
63°
31
Hist. Avg.
86°
63°
1
Hist. Avg.
86°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Holliston
Holliston's July 2026 forecast shows daily high temperatures ranging from 77° to 87°, with overnight lows between 54° and 64°. The average high for July is 83° with an average low of 57°. 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 Holliston. See also: August | September | October.
