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