S
M
T
W
T
F
S
26
80°
68°
27
79°
50°
28
74°
62°
29
73°
60°
30
69°
50°
1
67°
49°
2
70°
54°
3
75°
55°
4
72°
54°
5
80°
66°
6
70°
57°
7
71°
53°
8
70°
53°
9
71°
54°
10
72°
61°
11
74°
63°
12
80°
60°
13
73°
54°
14
73°
56°
15
74°
55°
16
74°
57°
17
75°
60°
18
76°
64°
19
78°
57°
20
73°
57°
21
75°
56°
22
76°
60°
23
81°
65°
24
82°
61°
25
76°
61°
26
74°
60°
27
76°
63°
28
76°
65°
29
78°
64°
30
78°
61°
31
79°
60°
1
79°
61°
2
81°
64°
3
83°
68°
4
83°
68°
5
88°
68°
6
91°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Owasso
Owasso's May 2026 forecast shows daily high temperatures ranging from 67° to 91°, with overnight lows between 49° and 70°. The average high for May is 76° with an average low of 60°. 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 Owasso. See also: June | July | August.
