S
M
T
W
T
F
S
26
62°
30°
27
61°
39°
28
52°
37°
29
45°
31°
30
43°
30°
1
41°
31°
2
47°
30°
3
55°
29°
4
63°
35°
5
44°
30°
6
41°
29°
7
45°
30°
8
55°
31°
9
56°
37°
10
47°
33°
11
48°
31°
12
49°
29°
13
48°
39°
14
61°
34°
15
69°
37°
16
73°
47°
17
65°
38°
18
71°
49°
19
75°
39°
20
42°
33°
21
59°
29°
22
62°
37°
23
61°
48°
24
60°
45°
25
74°
51°
26
78°
51°
27
76°
50°
28
64°
46°
29
67°
46°
30
66°
47°
31
67°
50°
1
67°
51°
2
68°
50°
3
72°
51°
4
71°
49°
5
65°
59°
6
65°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sault Ste. Marie
Sault Ste. Marie's May 2026 forecast shows daily high temperatures ranging from 60° to 78°, with overnight lows between 45° and 59°. The average high for May is 68° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Sault Ste. Marie. See also: June | July | August.
