S
M
T
W
T
F
S
31
78°
58°
1
77°
55°
2
72°
57°
3
79°
60°
4
80°
61°
5
80°
60°
6
72°
59°
7
77°
58°
8
72°
59°
9
78°
62°
10
81°
63°
11
81°
62°
12
74°
59°
13
74°
55°
14
73°
55°
15
75°
56°
16
75°
58°
17
80°
63°
18
79°
63°
19
79°
58°
20
78°
59°
21
80°
62°
22
82°
63°
23
83°
56°
24
78°
56°
25
78°
59°
26
82°
60°
27
85°
66°
28
80°
62°
29
88°
66°
30
87°
59°
1
81°
59°
2
82°
65°
3
82°
68°
4
87°
61°
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 72° to 88°, with overnight lows between 55° and 68°. The average high for June is 79° with an average low of 60°. 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.
