S
M
T
W
T
F
S
31
90°
72°
1
94°
77°
2
91°
69°
3
87°
70°
4
82°
72°
5
82°
73°
6
83°
74°
7
85°
75°
8
88°
74°
9
92°
76°
10
93°
75°
11
92°
74°
12
91°
73°
13
93°
73°
14
91°
75°
15
93°
74°
16
92°
75°
17
93°
72°
18
92°
74°
19
94°
75°
20
94°
75°
21
93°
74°
22
94°
75°
23
94°
75°
24
93°
74°
25
95°
76°
26
95°
76°
27
94°
75°
28
94°
75°
29
93°
76°
30
95°
76°
1
95°
75°
2
96°
76°
3
95°
76°
4
92°
75°
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 82° to 96°, with overnight lows between 72° and 76°. The average high for June is 92° with an average low of 75°. 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.
