S
M
T
W
T
F
S
29
29°
24°
30
35°
24°
31
25°
15°
1
27°
20°
2
22°
14°
3
25°
13°
4
25°
10°
5
26°
5°
6
27°
2°
7
35°
23°
8
33°
27°
9
33°
27°
10
34°
29°
11
34°
30°
12
33°
24°
13
26°
19°
14
28°
16°
15
31°
22°
16
35°
28°
17
31°
24°
18
31°
19°
19
35°
28°
20
32°
9°
21
14°
11°
22
35°
30°
23
41°
34°
24
37°
28°
25
37°
31°
26
38°
32°
27
40°
31°
28
38°
33°
29
40°
32°
30
43°
34°
1
46°
34°
2
50°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Hamilton
Hamilton's April 2026 forecast shows daily high temperatures ranging from 14° to 50°, with overnight lows between 11° and 35°. The average high for April is 38° with an average low of 30°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Hamilton. See also: May | June | July.
