S
M
T
W
T
F
S
26
71°
45°
27
71°
43°
28
61°
47°
29
53°
41°
30
N/A
1
50°
30°
2
51°
36°
3
58°
46°
4
71°
47°
5
53°
40°
6
53°
38°
7
50°
37°
8
57°
43°
9
60°
40°
10
62°
45°
11
58°
43°
12
62°
46°
13
61°
44°
14
59°
47°
15
62°
44°
16
62°
41°
17
64°
51°
18
68°
53°
19
70°
53°
20
71°
54°
21
73°
54°
22
68°
53°
23
73°
50°
24
64°
46°
25
65°
49°
26
66°
55°
27
72°
55°
28
70°
54°
29
68°
50°
30
67°
49°
31
68°
47°
1
67°
51°
2
67°
51°
3
68°
48°
4
68°
48°
5
69°
49°
6
69°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Owosso
Owosso's May 2026 forecast shows daily high temperatures ranging from 50° to 73°, with overnight lows between 30° and 55°. The average high for May is 64° with an average low of 47°. 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 Owosso. See also: June | July | August.
