S
M
T
W
T
F
S
26
71°
53°
27
72°
55°
28
72°
56°
29
71°
55°
30
73°
61°
31
76°
62°
1
80°
62°
2
81°
61°
3
81°
58°
4
79°
54°
5
72°
54°
6
71°
55°
7
72°
55°
8
73°
57°
9
74°
57°
10
74°
60°
11
76°
61°
12
77°
60°
13
79°
61°
14
77°
60°
15
81°
55°
16
78°
52°
17
71°
53°
18
72°
54°
19
74°
58°
20
76°
56°
21
75°
53°
22
74°
55°
23
77°
56°
24
77°
57°
25
78°
53°
26
71°
51°
27
74°
56°
28
74°
58°
29
71°
59°
30
77°
55°
31
78°
52°
1
76°
55°
2
72°
51°
3
71°
53°
4
71°
57°
5
75°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Ignace
St. Ignace's August 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 51° and 62°. The average high for August is 75° with an average low of 56°. 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 St. Ignace. See also: September | October | November.
