S
M
T
W
T
F
S
26
48°
39°
27
45°
41°
28
50°
36°
29
57°
32°
30
54°
30°
1
54°
32°
2
70°
36°
3
70°
45°
4
63°
39°
5
48°
32°
6
46°
30°
7
61°
30°
8
72°
43°
9
59°
43°
10
57°
36°
11
73°
36°
12
72°
54°
13
77°
43°
14
81°
55°
15
82°
54°
16
73°
48°
17
73°
50°
18
52°
43°
19
52°
41°
20
63°
36°
21
68°
43°
22
54°
46°
23
66°
52°
24
86°
50°
25
93°
57°
26
90°
63°
27
91°
68°
28
91°
63°
29
83°
64°
30
76°
60°
31
73°
63°
1
81°
60°
2
82°
62°
3
85°
60°
4
81°
62°
5
78°
59°
6
76°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ortonville
Ortonville's May 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 59° and 64°. The average high for May is 79° with an average low of 61°. 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 Ortonville. See also: June | July | August.
