S
M
T
W
T
F
S
31
81°
57°
1
80°
55°
2
81°
56°
3
79°
58°
4
82°
61°
5
87°
64°
6
87°
64°
7
86°
65°
8
79°
58°
9
75°
63°
10
78°
63°
11
79°
62°
12
78°
63°
13
81°
64°
14
82°
64°
15
83°
65°
16
83°
64°
17
78°
57°
18
75°
57°
19
75°
65°
20
78°
62°
21
76°
60°
22
76°
60°
23
77°
62°
24
78°
64°
25
82°
67°
26
83°
67°
27
86°
66°
28
86°
68°
29
87°
66°
30
79°
61°
1
78°
60°
2
79°
64°
3
81°
64°
4
81°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Dubuque
Dubuque's June 2026 forecast shows daily high temperatures ranging from 75° to 87°, with overnight lows between 55° and 68°. The average high for June is 80° 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 Dubuque. See also: July | August | September.