S
M
T
W
T
F
S
1
28°
8°
2
26°
1°
3
28°
13°
4
42°
27°
5
43°
27°
6
37°
33°
7
54°
36°
8
52°
33°
9
69°
28°
10
67°
34°
11
66°
42°
12
55°
28°
13
36°
21°
14
36°
26°
15
42°
20°
16
63°
29°
17
29°
18°
18
29°
10°
19
41°
28°
20
45°
28°
21
37°
31°
22
48°
32°
23
34°
29°
24
42°
23°
25
53°
24°
26
64°
45°
27
45°
20°
28
31°
18°
29
51°
28°
30
68°
38°
31
71°
52°
1
59°
37°
2
40°
36°
3
76°
38°
4
65°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Hamilton
Hamilton's March 2026 forecast shows daily high temperatures ranging from 65° to 65°, with overnight lows between 47° and 47°. The average high for March is 65° with an average low of 47°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Hamilton. See also: April | May | June.