S
M
T
W
T
F
S
30
68°
61°
31
79°
63°
1
89°
56°
2
81°
55°
3
79°
52°
4
66°
59°
5
76°
52°
6
79°
47°
7
81°
59°
8
69°
61°
9
79°
60°
10
69°
49°
11
82°
50°
12
75°
53°
13
62°
42°
14
66°
38°
15
70°
49°
16
65°
41°
17
67°
50°
18
59°
41°
19
66°
36°
20
54°
43°
21
54°
39°
22
59°
32°
23
67°
34°
24
70°
46°
25
71°
47°
26
74°
42°
27
76°
39°
28
70°
46°
29
75°
44°
30
77°
57°
1
64°
49°
2
57°
35°
3
60°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Marquette
Marquette's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Marquette. See also: October | November | December.
