S
M
T
W
T
F
S
27
73°
45°
28
73°
42°
29
71°
42°
30
61°
46°
1
60°
41°
2
63°
47°
3
62°
48°
4
63°
46°
5
68°
49°
6
68°
49°
7
67°
48°
8
66°
49°
9
66°
46°
10
67°
43°
11
60°
45°
12
59°
44°
13
66°
37°
14
61°
39°
15
60°
44°
16
63°
42°
17
64°
36°
18
59°
38°
19
56°
39°
20
54°
38°
21
54°
39°
22
55°
35°
23
54°
37°
24
53°
38°
25
Hist. Avg.
58°
37°
26
Hist. Avg.
58°
37°
27
Hist. Avg.
57°
37°
28
Hist. Avg.
57°
36°
29
Hist. Avg.
57°
36°
30
Hist. Avg.
56°
36°
31
Hist. Avg.
56°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Hamilton
Hamilton's October 2026 forecast shows daily high temperatures ranging from 53° to 73°, with overnight lows between 35° and 49°. The average high for October is 62° with an average low of 43°. 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 Hamilton. See also: November | December | January.