S
M
T
W
T
F
S
29
63°
27°
30
74°
51°
31
82°
55°
1
87°
59°
2
86°
61°
3
84°
62°
4
82°
64°
5
69°
45°
6
65°
43°
7
62°
35°
8
57°
34°
9
69°
43°
10
74°
45°
11
76°
49°
12
75°
50°
13
76°
49°
14
72°
50°
15
74°
48°
16
69°
40°
17
72°
41°
18
63°
41°
19
66°
42°
20
71°
46°
21
74°
47°
22
75°
48°
23
76°
49°
24
76°
49°
25
77°
48°
26
77°
50°
27
76°
45°
28
66°
41°
29
72°
48°
30
76°
49°
1
71°
47°
2
68°
44°
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 57° to 84°, with overnight lows between 34° and 64°. The average high for April is 72° with an average low of 46°. 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.
