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