S
M
T
W
T
F
S
26
41°
22°
27
44°
19°
28
55°
26°
29
55°
30°
30
65°
29°
1
69°
32°
2
69°
42°
3
77°
38°
4
54°
34°
5
49°
27°
6
57°
21°
7
68°
33°
8
76°
37°
9
66°
39°
10
73°
43°
11
78°
47°
12
74°
38°
13
89°
47°
14
71°
48°
15
68°
41°
16
66°
36°
17
52°
38°
18
48°
34°
19
66°
29°
20
65°
43°
21
64°
41°
22
69°
39°
23
73°
48°
24
81°
51°
25
90°
62°
26
95°
63°
27
88°
64°
28
87°
61°
29
83°
54°
30
79°
53°
31
82°
55°
1
80°
53°
2
79°
53°
3
81°
52°
4
82°
49°
5
71°
48°
6
75°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. Marie
St. Marie's May 2026 forecast shows daily high temperatures ranging from 71° to 95°, with overnight lows between 48° and 64°. The average high for May is 82° with an average low of 55°. 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 St. Marie. See also: June | July | August.
