S
M
T
W
T
F
S
27
76°
54°
28
71°
60°
29
71°
61°
30
74°
56°
1
74°
63°
2
67°
47°
3
62°
46°
4
71°
46°
5
61°
42°
6
58°
38°
7
73°
51°
8
66°
46°
9
69°
44°
10
60°
39°
11
63°
48°
12
72°
57°
13
79°
56°
14
64°
46°
15
54°
50°
16
59°
37°
17
49°
37°
18
57°
44°
19
62°
47°
20
64°
46°
21
63°
48°
22
63°
49°
23
61°
47°
24
59°
47°
25
57°
45°
26
55°
37°
27
54°
31°
28
45°
30°
29
45°
35°
30
49°
40°
31
55°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Halton Hills
Halton Hills's October 2026 forecast shows daily high temperatures ranging from 45° to 79°, with overnight lows between 30° and 56°. The average high for October is 58° with an average low of 42°. 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 Halton Hills. See also: November | December | January.