S
M
T
W
T
F
S
31
73°
52°
1
74°
49°
2
72°
50°
3
78°
54°
4
83°
59°
5
87°
64°
6
87°
66°
7
81°
65°
8
82°
61°
9
83°
64°
10
83°
62°
11
82°
63°
12
79°
59°
13
77°
63°
14
79°
62°
15
79°
57°
16
74°
57°
17
74°
58°
18
76°
58°
19
77°
59°
20
79°
61°
21
79°
64°
22
77°
63°
23
77°
65°
24
78°
65°
25
79°
62°
26
78°
62°
27
84°
67°
28
83°
66°
29
80°
62°
30
79°
60°
1
78°
61°
2
79°
64°
3
81°
67°
4
85°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Union
Union's June 2026 forecast shows daily high temperatures ranging from 72° to 87°, with overnight lows between 49° and 67°. The average high for June is 79° with an average low of 61°. 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 Union. See also: July | August | September.