S
M
T
W
T
F
S
31
88°
74°
1
87°
74°
2
89°
74°
3
85°
72°
4
N/A
5
84°
74°
6
82°
76°
7
86°
78°
8
85°
74°
9
88°
74°
10
89°
73°
11
87°
74°
12
88°
73°
13
88°
72°
14
90°
73°
15
89°
74°
16
89°
75°
17
91°
76°
18
89°
72°
19
88°
74°
20
89°
75°
21
90°
75°
22
90°
74°
23
89°
75°
24
90°
75°
25
91°
74°
26
91°
75°
27
90°
75°
28
90°
74°
29
89°
75°
30
91°
75°
1
91°
74°
2
92°
75°
3
92°
75°
4
90°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Markham
Markham's June 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 72° and 78°. The average high for June is 89° with an average low of 74°. 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.
