S
M
T
W
T
F
S
26
78°
71°
27
78°
71°
28
77°
70°
29
76°
70°
30
75°
71°
1
75°
71°
2
76°
70°
3
76°
72°
4
77°
72°
5
76°
71°
6
76°
72°
7
77°
72°
8
78°
71°
9
77°
72°
10
76°
72°
11
78°
73°
12
77°
73°
13
77°
72°
14
78°
73°
15
81°
72°
16
82°
73°
17
82°
73°
18
81°
74°
19
82°
73°
20
82°
74°
21
81°
73°
22
83°
74°
23
82°
74°
24
83°
73°
25
83°
73°
26
82°
71°
27
80°
73°
28
80°
75°
29
82°
73°
30
84°
72°
31
83°
71°
1
81°
71°
2
82°
74°
3
81°
74°
4
81°
73°
5
84°
73°
6
83°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in O
O's May 2026 forecast shows daily high temperatures ranging from 75° to 84°, with overnight lows between 70° and 75°. The average high for May is 80° with an average low of 72°. 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 O. See also: June | July | August.
