S
M
T
W
T
F
S
30
84°
66°
31
83°
67°
1
83°
67°
2
84°
66°
3
82°
59°
4
81°
56°
5
79°
56°
6
81°
58°
7
85°
58°
8
86°
64°
9
87°
64°
10
81°
56°
11
79°
56°
12
80°
57°
13
81°
55°
14
79°
54°
15
77°
53°
16
76°
52°
17
77°
53°
18
78°
56°
19
81°
58°
20
80°
58°
21
83°
59°
22
83°
60°
23
82°
59°
24
78°
58°
25
78°
58°
26
79°
57°
27
81°
57°
28
82°
56°
29
82°
56°
30
81°
55°
1
81°
57°
2
82°
51°
3
81°
45°
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 76° to 87°, with overnight lows between 45° and 67°. The average high for September is 81° with an average low of 58°. 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.
