S
M
T
W
T
F
S
31
64°
48°
1
64°
46°
2
65°
46°
3
69°
52°
4
67°
49°
5
68°
54°
6
74°
55°
7
74°
56°
8
73°
57°
9
72°
57°
10
74°
55°
11
74°
51°
12
72°
56°
13
76°
52°
14
67°
52°
15
78°
59°
16
79°
60°
17
79°
60°
18
80°
53°
19
82°
52°
20
74°
48°
21
71°
58°
22
76°
52°
23
75°
48°
24
71°
55°
25
76°
55°
26
75°
54°
27
78°
54°
28
76°
52°
29
77°
53°
30
80°
51°
1
77°
57°
2
80°
59°
3
74°
51°
4
73°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Alliston
Alliston's June 2026 forecast shows daily high temperatures ranging from 64° to 82°, with overnight lows between 46° and 60°. The average high for June is 74° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Alliston. See also: July | August | September.
