S
M
T
W
T
F
S
30
73°
51°
31
73°
51°
1
72°
53°
2
71°
52°
3
72°
52°
4
71°
51°
5
70°
51°
6
70°
52°
7
69°
52°
8
71°
53°
9
71°
50°
10
72°
50°
11
70°
51°
12
70°
49°
13
69°
53°
14
72°
54°
15
75°
53°
16
75°
54°
17
76°
55°
18
75°
55°
19
Hist. Avg.
68°
47°
20
Hist. Avg.
67°
46°
21
Hist. Avg.
67°
46°
22
Hist. Avg.
66°
45°
23
Hist. Avg.
66°
45°
24
Hist. Avg.
66°
44°
25
Hist. Avg.
65°
44°
26
Hist. Avg.
65°
43°
27
Hist. Avg.
64°
43°
28
Hist. Avg.
64°
43°
29
Hist. Avg.
64°
42°
30
Hist. Avg.
63°
42°
1
Hist. Avg.
63°
41°
2
Hist. Avg.
62°
41°
3
Hist. Avg.
62°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Coon Valley
Coon Valley's September 2026 forecast shows daily high temperatures ranging from 69° to 76°, with overnight lows between 49° and 55°. The average high for September is 72° with an average low of 52°. 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 Coon Valley. See also: October | November | December.
