S
M
T
W
T
F
S
26
73°
61°
27
75°
58°
28
72°
62°
29
71°
61°
30
72°
61°
31
71°
59°
1
72°
63°
2
76°
63°
3
76°
62°
4
74°
60°
5
70°
58°
6
72°
62°
7
76°
61°
8
73°
62°
9
72°
61°
10
71°
59°
11
72°
61°
12
75°
62°
13
77°
60°
14
70°
58°
15
70°
57°
16
71°
61°
17
74°
61°
18
77°
60°
19
77°
61°
20
76°
59°
21
70°
56°
22
68°
54°
23
70°
60°
24
71°
57°
25
76°
54°
26
73°
48°
27
69°
51°
28
66°
48°
29
68°
52°
30
67°
57°
31
70°
57°
1
74°
58°
2
72°
57°
3
75°
53°
4
70°
49°
5
70°
49°
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 66° to 77°, with overnight lows between 48° and 63°. The average high for August is 72° with an average low of 58°. 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.
