S
M
T
W
T
F
S
31
79°
44°
1
79°
47°
2
83°
54°
3
83°
61°
4
70°
60°
5
80°
61°
6
72°
57°
7
74°
59°
8
74°
58°
9
73°
57°
10
78°
57°
11
72°
56°
12
71°
56°
13
74°
55°
14
73°
50°
15
67°
47°
16
67°
47°
17
69°
54°
18
76°
56°
19
77°
56°
20
77°
57°
21
75°
57°
22
72°
56°
23
73°
54°
24
69°
51°
25
69°
57°
26
76°
56°
27
70°
52°
28
69°
53°
29
70°
50°
30
71°
57°
1
73°
59°
2
78°
59°
3
76°
54°
4
70°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Round Lake
Round Lake's June 2026 forecast shows daily high temperatures ranging from 67° to 83°, with overnight lows between 47° and 61°. The average high for June is 74° with an average low of 55°. 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 Round Lake. See also: July | August | September.
