S
M
T
W
T
F
S
30
75°
53°
31
80°
57°
1
82°
57°
2
81°
59°
3
81°
60°
4
80°
51°
5
78°
56°
6
80°
57°
7
73°
56°
8
80°
57°
9
81°
57°
10
82°
56°
11
81°
57°
12
81°
58°
13
80°
57°
14
79°
56°
15
78°
55°
16
77°
56°
17
78°
53°
18
77°
47°
19
74°
46°
20
68°
45°
21
70°
45°
22
72°
43°
23
67°
44°
24
67°
51°
25
66°
53°
26
70°
52°
27
70°
53°
28
71°
53°
29
69°
52°
30
69°
41°
1
68°
39°
2
62°
38°
3
60°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Muskego
Muskego's September 2026 forecast shows daily high temperatures ranging from 60° to 82°, with overnight lows between 38° and 60°. The average high for September is 74° 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 Muskego. See also: October | November | December.
