S
M
T
W
T
F
S
29
47°
30°
30
54°
36°
1
51°
34°
2
45°
35°
3
52°
35°
4
54°
30°
5
43°
27°
6
42°
28°
7
41°
34°
8
44°
33°
9
43°
34°
10
50°
35°
11
51°
33°
12
42°
31°
13
40°
25°
14
36°
24°
15
35°
25°
16
36°
31°
17
41°
33°
18
49°
34°
19
48°
33°
20
48°
30°
21
39°
25°
22
35°
28°
23
46°
32°
24
46°
32°
25
36°
20°
26
36°
21°
27
37°
28°
28
38°
24°
29
39°
24°
30
36°
23°
31
37°
19°
1
37°
16°
2
34°
15°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Hamilton
Hamilton's December 2026 forecast shows daily high temperatures ranging from 34° to 54°, with overnight lows between 15° and 36°. The average high for December is 43° with an average low of 28°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Hamilton. See also: January | February | March.
