S
M
T
W
T
F
S
29
55°
35°
30
57°
34°
1
49°
34°
2
56°
33°
3
53°
31°
4
45°
27°
5
48°
33°
6
45°
33°
7
44°
32°
8
45°
33°
9
46°
32°
10
44°
31°
11
40°
27°
12
45°
31°
13
48°
24°
14
41°
30°
15
50°
27°
16
48°
32°
17
50°
31°
18
51°
30°
19
49°
29°
20
40°
27°
21
40°
29°
22
51°
29°
23
47°
26°
24
38°
24°
25
36°
19°
26
39°
22°
27
41°
21°
28
39°
17°
29
36°
17°
30
37°
11°
31
35°
8°
1
31°
16°
2
32°
12°
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 31° to 57°, with overnight lows between 8° and 35°. The average high for December is 44° with an average low of 26°. 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.
