S
M
T
W
T
F
S
30
71°
54°
31
70°
56°
1
68°
55°
2
68°
54°
3
71°
59°
4
75°
59°
5
75°
57°
6
71°
51°
7
71°
48°
8
68°
53°
9
66°
59°
10
73°
58°
11
74°
50°
12
72°
51°
13
64°
49°
14
64°
48°
15
62°
47°
16
62°
48°
17
63°
50°
18
65°
54°
19
66°
56°
20
72°
46°
21
70°
45°
22
59°
45°
23
71°
52°
24
Hist. Avg.
63°
43°
25
Hist. Avg.
62°
43°
26
Hist. Avg.
62°
43°
27
Hist. Avg.
61°
42°
28
Hist. Avg.
61°
42°
29
Hist. Avg.
60°
41°
30
Hist. Avg.
60°
41°
1
Hist. Avg.
59°
41°
2
Hist. Avg.
59°
40°
3
Hist. Avg.
58°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Marquette
Marquette's September 2026 forecast shows daily high temperatures ranging from 59° to 75°, with overnight lows between 45° and 59°. The average high for September is 68° 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 Marquette. See also: October | November | December.
