S
M
T
W
T
F
S
31
71°
42°
1
77°
49°
2
88°
55°
3
76°
49°
4
77°
49°
5
73°
50°
6
71°
48°
7
73°
49°
8
71°
50°
9
72°
51°
10
75°
49°
11
71°
50°
12
75°
53°
13
76°
52°
14
71°
47°
15
72°
48°
16
75°
52°
17
75°
50°
18
71°
46°
19
75°
51°
20
78°
54°
21
79°
55°
22
79°
55°
23
77°
54°
24
74°
54°
25
68°
52°
26
68°
51°
27
75°
50°
28
76°
50°
29
70°
49°
30
77°
52°
1
79°
55°
2
77°
55°
3
70°
51°
4
69°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Onalaska
Onalaska's June 2026 forecast shows daily high temperatures ranging from 68° to 88°, with overnight lows between 42° and 55°. The average high for June is 74° with an average low of 51°. 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 Onalaska. See also: July | August | September.
