S
M
T
W
T
F
S
31
71°
49°
1
71°
53°
2
72°
53°
3
81°
62°
4
87°
69°
5
82°
67°
6
81°
61°
7
76°
64°
8
81°
66°
9
82°
65°
10
80°
64°
11
83°
64°
12
82°
62°
13
82°
63°
14
79°
62°
15
80°
60°
16
72°
56°
17
73°
56°
18
75°
61°
19
78°
61°
20
79°
64°
21
77°
62°
22
80°
66°
23
82°
65°
24
82°
64°
25
79°
66°
26
85°
67°
27
84°
62°
28
77°
60°
29
78°
61°
30
79°
60°
1
83°
67°
2
85°
68°
3
84°
67°
4
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Mount Prospect
Mount Prospect's June 2026 forecast shows daily high temperatures ranging from 72° to 87°, with overnight lows between 53° and 69°. The average high for June is 80° 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 Mount Prospect. See also: July | August | September.
