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