S
M
T
W
T
F
S
26
78°
63°
27
82°
60°
28
76°
58°
29
80°
55°
30
87°
57°
31
84°
66°
1
77°
64°
2
78°
57°
3
79°
52°
4
83°
57°
5
75°
58°
6
80°
53°
7
82°
58°
8
73°
55°
9
75°
54°
10
78°
58°
11
80°
52°
12
78°
56°
13
77°
56°
14
79°
58°
15
76°
60°
16
72°
58°
17
75°
55°
18
75°
58°
19
71°
57°
20
69°
59°
21
71°
58°
22
70°
55°
23
72°
56°
24
71°
55°
25
70°
53°
26
78°
61°
27
78°
59°
28
72°
59°
29
75°
59°
30
72°
58°
31
77°
60°
1
77°
59°
2
76°
59°
3
76°
58°
4
75°
58°
5
75°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sault Ste. Marie
Sault Ste. Marie's August 2026 forecast shows daily high temperatures ranging from 69° to 79°, with overnight lows between 53° and 61°. The average high for August is 74° 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 Sault Ste. Marie. See also: September | October | November.
