S
M
T
W
T
F
S
26
100°
78°
27
96°
78°
28
94°
74°
29
89°
74°
30
86°
69°
31
78°
65°
1
84°
62°
2
86°
62°
3
86°
65°
4
80°
63°
5
74°
61°
6
80°
64°
7
88°
67°
8
82°
66°
9
88°
74°
10
90°
72°
11
93°
74°
12
91°
73°
13
87°
72°
14
82°
73°
15
84°
74°
16
80°
66°
17
83°
62°
18
83°
67°
19
80°
67°
20
83°
63°
21
81°
65°
22
84°
65°
23
76°
64°
24
79°
65°
25
83°
63°
26
86°
66°
27
84°
63°
28
85°
65°
29
91°
67°
30
92°
74°
31
91°
73°
1
97°
73°
2
98°
70°
3
96°
76°
4
97°
74°
5
94°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Union
Union's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Union. See also: September | October | November.
