S
M
T
W
T
F
S
26
36°
23°
27
36°
21°
28
39°
28°
29
48°
23°
30
54°
25°
1
68°
36°
2
61°
39°
3
68°
37°
4
43°
32°
5
41°
27°
6
49°
26°
7
55°
34°
8
56°
27°
9
50°
28°
10
59°
38°
11
59°
40°
12
62°
40°
13
63°
41°
14
59°
40°
15
65°
46°
16
60°
37°
17
58°
38°
18
60°
39°
19
63°
38°
20
59°
39°
21
63°
45°
22
67°
46°
23
68°
45°
24
63°
44°
25
66°
47°
26
69°
48°
27
67°
48°
28
67°
47°
29
69°
48°
30
69°
47°
31
64°
46°
1
70°
48°
2
67°
48°
3
67°
39°
4
58°
38°
5
59°
39°
6
61°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Okla
Okla's May 2026 forecast shows daily high temperatures ranging from 49° to 70°, with overnight lows between 26° and 48°. The average high for May is 62° with an average low of 41°. 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 Okla. See also: June | July | August.
