S
M
T
W
T
F
S
30
34°
27°
1
28°
24°
2
31°
18°
3
33°
18°
4
28°
12°
5
32°
14°
6
33°
24°
7
27°
4°
8
23°
1°
9
37°
17°
10
39°
27°
11
27°
26°
12
32°
25°
13
29°
11°
14
22°
8°
15
26°
8°
16
38°
18°
17
41°
29°
18
49°
31°
19
31°
17°
20
39°
19°
21
27°
21°
22
43°
25°
23
45°
32°
24
40°
31°
25
41°
30°
26
39°
33°
27
37°
33°
28
54°
35°
29
37°
23°
30
25°
22°
31
31°
17°
1
23°
16°
2
24°
21°
3
28°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Hamilton
Hamilton's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. 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.
