S
M
T
W
T
F
S
31
73°
52°
1
66°
55°
2
73°
54°
3
82°
58°
4
88°
65°
5
87°
68°
6
81°
61°
7
75°
61°
8
81°
63°
9
80°
62°
10
81°
63°
11
79°
63°
12
84°
65°
13
84°
63°
14
81°
64°
15
82°
65°
16
81°
59°
17
79°
63°
18
83°
62°
19
82°
63°
20
84°
63°
21
84°
57°
22
76°
56°
23
78°
64°
24
85°
66°
25
86°
64°
26
84°
64°
27
79°
61°
28
80°
63°
29
83°
65°
30
83°
65°
1
82°
64°
2
83°
65°
3
85°
65°
4
86°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Merrillville
Merrillville's June 2026 forecast shows daily high temperatures ranging from 75° to 88°, with overnight lows between 56° and 68°. The average high for June is 82° with an average low of 63°. 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 Merrillville. See also: July | August | September.
