S
M
T
W
T
F
S
30
105°
69°
31
104°
67°
1
105°
69°
2
108°
72°
3
109°
66°
4
105°
66°
5
101°
65°
6
103°
68°
7
100°
62°
8
98°
61°
9
98°
62°
10
99°
62°
11
100°
63°
12
102°
66°
13
104°
67°
14
105°
67°
15
103°
61°
16
98°
60°
17
96°
58°
18
94°
58°
19
93°
59°
20
95°
59°
21
98°
67°
22
99°
66°
23
95°
66°
24
93°
63°
25
93°
57°
26
92°
55°
27
91°
56°
28
90°
58°
29
90°
57°
30
98°
63°
1
97°
65°
2
Hist. Avg.
86°
54°
3
Hist. Avg.
85°
53°
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 90° to 109°, with overnight lows between 55° and 72°. The average high for September is 99° with an average low of 63°. 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.
