S
M
T
W
T
F
S
26
77°
59°
27
78°
55°
28
75°
56°
29
72°
56°
30
75°
58°
31
74°
60°
1
76°
63°
2
78°
57°
3
76°
55°
4
75°
55°
5
71°
56°
6
73°
58°
7
72°
60°
8
74°
64°
9
80°
61°
10
79°
61°
11
77°
63°
12
78°
62°
13
80°
63°
14
80°
63°
15
79°
62°
16
81°
61°
17
78°
63°
18
80°
56°
19
79°
61°
20
72°
57°
21
72°
56°
22
Hist. Avg.
75°
58°
23
Hist. Avg.
74°
58°
24
Hist. Avg.
74°
58°
25
Hist. Avg.
74°
58°
26
Hist. Avg.
74°
58°
27
Hist. Avg.
74°
58°
28
Hist. Avg.
74°
57°
29
Hist. Avg.
74°
57°
30
Hist. Avg.
73°
57°
31
Hist. Avg.
73°
57°
1
Hist. Avg.
73°
56°
2
Hist. Avg.
73°
56°
3
Hist. Avg.
72°
56°
4
Hist. Avg.
72°
56°
5
Hist. Avg.
72°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Mackinac Bridge
Mackinac Bridge's August 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 55° and 64°. The average high for August is 76° with an average low of 59°. 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 Mackinac Bridge. See also: September | October | November.
