S
M
T
W
T
F
S
26
63°
43°
27
64°
45°
28
63°
54°
29
52°
43°
30
52°
39°
1
46°
39°
2
46°
36°
3
63°
37°
4
75°
47°
5
57°
49°
6
52°
43°
7
54°
39°
8
65°
37°
9
68°
45°
10
59°
40°
11
57°
37°
12
59°
34°
13
58°
43°
14
63°
43°
15
69°
38°
16
81°
50°
17
84°
57°
18
87°
66°
19
85°
64°
20
66°
45°
21
62°
40°
22
67°
43°
23
58°
52°
24
64°
52°
25
78°
56°
26
82°
52°
27
78°
52°
28
70°
45°
29
79°
47°
30
72°
46°
31
72°
50°
1
74°
49°
2
74°
51°
3
79°
56°
4
78°
58°
5
79°
57°
6
76°
56°
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 70° to 79°, with overnight lows between 45° and 58°. The average high for May is 76° with an average low of 52°. 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.
