S
M
T
W
T
F
S
30
77°
59°
31
74°
58°
1
79°
59°
2
80°
54°
3
79°
49°
4
72°
53°
5
71°
58°
6
79°
52°
7
76°
49°
8
69°
50°
9
71°
54°
10
70°
56°
11
71°
57°
12
78°
56°
13
77°
55°
14
76°
48°
15
70°
47°
16
67°
50°
17
68°
46°
18
67°
45°
19
67°
42°
20
65°
42°
21
64°
45°
22
65°
50°
23
68°
43°
24
69°
50°
25
71°
51°
26
68°
50°
27
72°
51°
28
72°
47°
29
71°
45°
30
61°
45°
1
65°
46°
2
70°
47°
3
62°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Beaver Dam
Beaver Dam's September 2026 forecast shows daily high temperatures ranging from 61° to 80°, with overnight lows between 38° and 59°. The average high for September is 71° with an average low of 50°. 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 Beaver Dam. See also: October | November | December.
