S
M
T
W
T
F
S
31
62°
47°
1
68°
42°
2
75°
46°
3
82°
47°
4
81°
55°
5
79°
59°
6
74°
64°
7
65°
51°
8
77°
48°
9
82°
51°
10
84°
58°
11
84°
71°
12
87°
71°
13
80°
63°
14
68°
62°
15
70°
57°
16
73°
53°
17
77°
51°
18
68°
60°
19
63°
58°
20
71°
56°
21
74°
58°
22
73°
57°
23
76°
58°
24
74°
53°
25
N/A
26
68°
59°
27
74°
57°
28
76°
57°
29
80°
64°
30
80°
64°
1
83°
67°
2
83°
65°
3
85°
62°
4
81°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Waterloo
Waterloo's June 2026 forecast shows daily high temperatures ranging from 68° to 85°, with overnight lows between 57° and 67°. The average high for June is 79° with an average low of 62°. 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 Waterloo. See also: July | August | September.
