S
M
T
W
T
F
S
31
66°
54°
1
75°
57°
2
79°
54°
3
81°
57°
4
85°
64°
5
82°
63°
6
84°
66°
7
83°
66°
8
77°
67°
9
84°
71°
10
90°
72°
11
89°
71°
12
88°
67°
13
83°
63°
14
80°
62°
15
76°
57°
16
75°
60°
17
82°
59°
18
78°
62°
19
80°
63°
20
84°
60°
21
80°
56°
22
77°
59°
23
79°
66°
24
86°
67°
25
87°
65°
26
82°
63°
27
79°
64°
28
81°
65°
29
82°
65°
30
84°
64°
1
82°
65°
2
84°
66°
3
86°
66°
4
87°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Decorah
Decorah's June 2026 forecast shows daily high temperatures ranging from 75° to 90°, with overnight lows between 56° and 72°. The average high for June is 82° with an average low of 64°. 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 Decorah. See also: July | August | September.
