S
M
T
W
T
F
S
30
84°
61°
31
85°
62°
1
86°
61°
2
86°
61°
3
85°
55°
4
79°
53°
5
79°
58°
6
82°
60°
7
85°
61°
8
85°
60°
9
81°
57°
10
78°
59°
11
84°
58°
12
84°
59°
13
83°
59°
14
83°
58°
15
84°
58°
16
83°
57°
17
80°
56°
18
83°
50°
19
74°
49°
20
75°
47°
21
73°
47°
22
73°
48°
23
75°
50°
24
76°
46°
25
73°
47°
26
74°
53°
27
72°
52°
28
78°
53°
29
77°
52°
30
78°
52°
1
76°
50°
2
77°
50°
3
71°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in West Union
West Union's September 2026 forecast shows daily high temperatures ranging from 71° to 86°, with overnight lows between 46° and 62°. The average high for September is 79° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in West Union. See also: October | November | December.
