S
M
T
W
T
F
S
29
64°
27°
30
71°
54°
31
83°
60°
1
82°
56°
2
77°
55°
3
85°
58°
4
86°
64°
5
69°
41°
6
65°
41°
7
63°
34°
8
59°
37°
9
72°
47°
10
79°
46°
11
72°
45°
12
72°
45°
13
73°
50°
14
74°
42°
15
70°
48°
16
69°
42°
17
61°
37°
18
59°
41°
19
63°
45°
20
69°
49°
21
72°
50°
22
73°
50°
23
72°
51°
24
72°
51°
25
74°
52°
26
75°
51°
27
73°
45°
28
62°
42°
29
66°
50°
30
73°
51°
1
66°
45°
2
65°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Markham
Markham's April 2026 forecast shows daily high temperatures ranging from 59° to 86°, with overnight lows between 34° and 64°. The average high for April is 71° 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 April weather will actually feel in Markham. See also: May | June | July.
