S
M
T
W
T
F
S
26
75°
70°
27
76°
70°
28
76°
71°
29
77°
69°
30
76°
70°
1
76°
71°
2
77°
70°
3
76°
71°
4
76°
72°
5
77°
72°
6
77°
71°
7
78°
70°
8
78°
72°
9
79°
73°
10
78°
73°
11
78°
72°
12
79°
74°
13
78°
74°
14
79°
73°
15
84°
73°
16
84°
75°
17
82°
75°
18
83°
70°
19
84°
71°
20
81°
74°
21
81°
76°
22
85°
75°
23
85°
71°
24
86°
71°
25
81°
77°
26
81°
77°
27
85°
76°
28
85°
78°
29
86°
77°
30
86°
77°
31
87°
76°
1
86°
74°
2
84°
74°
3
88°
75°
4
88°
75°
5
87°
74°
6
88°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port O'Connor
Port O'Connor's May 2026 forecast shows daily high temperatures ranging from 75° to 88°, with overnight lows between 69° and 78°. The average high for May is 81° with an average low of 73°. 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 Port O'Connor. See also: June | July | August.
