S
M
T
W
T
F
S
31
79°
68°
1
86°
68°
2
82°
59°
3
82°
54°
4
86°
57°
5
88°
68°
6
86°
73°
7
84°
73°
8
86°
70°
9
91°
75°
10
91°
75°
11
91°
73°
12
84°
64°
13
81°
66°
14
79°
59°
15
79°
55°
16
82°
54°
17
93°
61°
18
79°
63°
19
84°
57°
20
86°
66°
21
84°
66°
22
70°
59°
23
82°
59°
24
82°
63°
25
88°
66°
26
79°
70°
27
88°
73°
28
93°
75°
29
93°
75°
30
95°
75°
1
94°
74°
2
95°
73°
3
95°
71°
4
93°
71°
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 93° to 95°, with overnight lows between 71° and 74°. The average high for June is 94° with an average low of 72°. 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.