S
M
T
W
T
F
S
30
80°
59°
31
80°
62°
1
81°
62°
2
82°
59°
3
80°
53°
4
78°
53°
5
77°
54°
6
78°
53°
7
82°
55°
8
83°
58°
9
84°
60°
10
83°
52°
11
78°
53°
12
77°
57°
13
77°
50°
14
76°
51°
15
75°
50°
16
74°
49°
17
75°
53°
18
77°
49°
19
77°
49°
20
76°
51°
21
80°
51°
22
75°
55°
23
80°
55°
24
77°
54°
25
76°
55°
26
79°
54°
27
80°
54°
28
81°
53°
29
81°
53°
30
79°
52°
1
79°
53°
2
80°
47°
3
79°
42°
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 74° to 84°, with overnight lows between 42° and 62°. The average high for September is 79° with an average low of 53°. 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.
