S
M
T
W
T
F
S
31
72°
42°
1
85°
45°
2
89°
52°
3
71°
54°
4
66°
49°
5
61°
47°
6
58°
42°
7
64°
51°
8
59°
52°
9
63°
48°
10
63°
50°
11
67°
49°
12
74°
54°
13
84°
56°
14
87°
57°
15
87°
56°
16
84°
58°
17
73°
52°
18
73°
49°
19
68°
49°
20
75°
51°
21
76°
49°
22
68°
49°
23
67°
47°
24
68°
48°
25
76°
50°
26
78°
55°
27
79°
55°
28
79°
54°
29
78°
54°
30
79°
52°
1
72°
52°
2
71°
50°
3
76°
50°
4
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Markham
Markham's June 2026 forecast shows daily high temperatures ranging from 58° to 87°, with overnight lows between 42° and 58°. The average high for June is 73° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Markham. See also: July | August | September.
