S
M
T
W
T
F
S
26
85°
64°
27
79°
61°
28
75°
55°
29
85°
52°
30
86°
60°
31
81°
63°
1
70°
59°
2
71°
49°
3
83°
45°
4
75°
58°
5
74°
56°
6
82°
50°
7
85°
61°
8
76°
56°
9
80°
53°
10
78°
52°
11
79°
54°
12
78°
53°
13
77°
54°
14
76°
49°
15
80°
47°
16
74°
55°
17
78°
53°
18
75°
49°
19
75°
48°
20
78°
45°
21
76°
57°
22
74°
52°
23
60°
50°
24
74°
49°
25
81°
50°
26
71°
62°
27
70°
53°
28
76°
49°
29
70°
62°
30
67°
63°
31
77°
65°
1
79°
63°
2
71°
60°
3
68°
61°
4
70°
60°
5
73°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Marquette
Marquette's August 2026 forecast shows daily high temperatures ranging from 67° to 79°, with overnight lows between 60° and 65°. The average high for August is 72° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Marquette. See also: September | October | November.