S
M
T
W
T
F
S
28
76°
52°
29
77°
59°
30
80°
52°
1
73°
51°
2
73°
52°
3
74°
54°
4
73°
52°
5
74°
51°
6
73°
52°
7
74°
53°
8
74°
53°
9
73°
57°
10
75°
58°
11
77°
57°
12
80°
60°
13
81°
61°
14
77°
56°
15
75°
54°
16
73°
54°
17
74°
55°
18
76°
53°
19
76°
54°
20
75°
53°
21
75°
53°
22
76°
54°
23
80°
55°
24
79°
54°
25
78°
54°
26
80°
60°
27
82°
56°
28
80°
53°
29
75°
53°
30
74°
52°
31
75°
54°
1
76°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Alliston
Alliston's July 2026 forecast shows daily high temperatures ranging from 73° to 82°, with overnight lows between 51° and 61°. The average high for July is 76° 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 Alliston. See also: August | September | October.
