S
M
T
W
T
F
S
29
49°
39°
30
57°
34°
1
57°
30°
2
52°
35°
3
57°
28°
4
56°
27°
5
43°
26°
6
43°
25°
7
42°
27°
8
43°
31°
9
45°
35°
10
54°
32°
11
54°
31°
12
44°
29°
13
42°
30°
14
42°
27°
15
43°
22°
16
41°
21°
17
39°
23°
18
38°
33°
19
44°
33°
20
46°
27°
21
51°
29°
22
42°
36°
23
52°
37°
24
52°
33°
25
51°
32°
26
50°
32°
27
46°
33°
28
49°
34°
29
49°
34°
30
50°
36°
31
52°
32°
1
52°
31°
2
51°
30°
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 38° to 57°, with overnight lows between 21° and 39°. The average high for December is 48° with an average low of 31°. 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.
