S
M
T
W
T
F
S
27
73°
48°
28
71°
50°
29
71°
55°
30
72°
55°
1
68°
60°
2
62°
46°
3
63°
42°
4
66°
41°
5
53°
40°
6
60°
33°
7
71°
53°
8
62°
46°
9
63°
38°
10
60°
35°
11
66°
48°
12
74°
54°
13
77°
53°
14
60°
14°
15
52°
42°
16
54°
37°
17
105°
69°
18
64°
38°
19
N/A
20
61°
32°
21
61°
41°
22
58°
32°
23
53°
30°
24
57°
36°
25
62°
45°
26
61°
35°
27
52°
36°
28
54°
35°
29
58°
39°
30
55°
42°
31
47°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Alliston
Alliston's October 2026 forecast shows daily high temperatures ranging from 47° to 62°, with overnight lows between 30° and 45°. The average high for October is 57° with an average low of 37°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Alliston. See also: November | December | January.
