S
M
T
W
T
F
S
26
86°
63°
27
91°
65°
28
68°
53°
29
69°
49°
30
70°
49°
1
71°
50°
2
75°
49°
3
85°
52°
4
82°
59°
5
74°
49°
6
66°
48°
7
76°
46°
8
84°
50°
9
85°
55°
10
63°
55°
11
78°
49°
12
83°
52°
13
86°
60°
14
89°
65°
15
91°
72°
16
87°
69°
17
87°
72°
18
90°
76°
19
79°
54°
20
64°
54°
21
66°
58°
22
81°
61°
23
81°
62°
24
84°
60°
25
85°
63°
26
84°
65°
27
76°
65°
28
85°
67°
29
90°
68°
30
90°
73°
31
99°
71°
1
98°
73°
2
91°
70°
3
88°
64°
4
83°
69°
5
79°
68°
6
83°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Oklahoma City Southeast
Oklahoma City Southeast's May 2026 forecast shows daily high temperatures ranging from 79° to 99°, with overnight lows between 64° and 73°. The average high for May is 89° with an average low of 69°. 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 Oklahoma City Southeast. See also: June | July | August.
