S
M
T
W
T
F
S
31
77°
60°
1
73°
57°
2
74°
56°
3
73°
56°
4
74°
57°
5
76°
64°
6
83°
66°
7
83°
66°
8
84°
67°
9
84°
66°
10
83°
59°
11
76°
58°
12
76°
60°
13
83°
66°
14
84°
60°
15
76°
59°
16
77°
60°
17
78°
60°
18
79°
61°
19
85°
66°
20
86°
69°
21
87°
68°
22
86°
68°
23
87°
70°
24
88°
70°
25
87°
69°
26
82°
63°
27
82°
67°
28
83°
68°
29
84°
64°
30
82°
63°
1
83°
69°
2
85°
71°
3
88°
71°
4
89°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Montclair
Montclair's June 2026 forecast shows daily high temperatures ranging from 73° to 89°, with overnight lows between 56° and 71°. The average high for June is 82° with an average low of 64°. 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 Montclair. See also: July | August | September.
