S
M
T
W
T
F
S
31
73°
45°
1
73°
54°
2
72°
50°
3
82°
45°
4
86°
55°
5
75°
63°
6
82°
61°
7
78°
62°
8
79°
67°
9
84°
69°
10
89°
69°
11
87°
60°
12
80°
60°
13
79°
58°
14
69°
52°
15
67°
51°
16
73°
54°
17
72°
56°
18
74°
57°
19
75°
58°
20
79°
57°
21
77°
61°
22
74°
61°
23
78°
62°
24
80°
63°
25
80°
63°
26
83°
64°
27
83°
59°
28
75°
56°
29
75°
62°
30
81°
64°
1
80°
63°
2
77°
63°
3
80°
60°
4
77°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Waukesha
Waukesha's June 2026 forecast shows daily high temperatures ranging from 67° to 89°, with overnight lows between 51° and 69°. The average high for June is 78° with an average low of 60°. 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 Waukesha. See also: July | August | September.