S
M
T
W
T
F
S
27
48°
32°
28
47°
32°
29
49°
38°
30
53°
39°
31
61°
28°
1
61°
24°
2
49°
21°
3
41°
24°
4
42°
35°
5
50°
40°
6
58°
42°
7
61°
30°
8
60°
23°
9
53°
24°
10
42°
26°
11
45°
24°
12
47°
23°
13
44°
24°
14
43°
22°
15
45°
24°
16
43°
28°
17
50°
38°
18
60°
27°
19
62°
23°
20
45°
27°
21
44°
37°
22
54°
39°
23
58°
41°
24
59°
42°
25
61°
41°
26
63°
40°
27
61°
38°
28
59°
32°
29
58°
30°
30
56°
27°
31
61°
20°
1
62°
30°
2
61°
26°
3
Hist. Avg.
52°
29°
4
Hist. Avg.
52°
29°
5
Hist. Avg.
52°
29°
6
Hist. Avg.
52°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Hamilton
Hamilton's January 2027 forecast shows daily high temperatures ranging from 41° to 63°, with overnight lows between 20° and 42°. The average high for January is 53° with an average low of 31°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Hamilton. See also: February | March | April.
