S
M
T
W
T
F
S
26
60°
36°
27
47°
36°
28
45°
38°
29
44°
38°
30
43°
39°
1
57°
40°
2
56°
38°
3
43°
35°
4
62°
35°
5
51°
41°
6
53°
44°
7
53°
41°
8
62°
37°
9
52°
34°
10
50°
42°
11
49°
43°
12
53°
39°
13
61°
38°
14
57°
40°
15
58°
44°
16
76°
44°
17
81°
44°
18
67°
46°
19
56°
46°
20
68°
46°
21
68°
44°
22
64°
39°
23
60°
36°
24
63°
43°
25
53°
50°
26
76°
47°
27
67°
45°
28
54°
42°
29
57°
43°
30
53°
44°
31
54°
43°
1
56°
44°
2
59°
43°
3
61°
46°
4
62°
48°
5
60°
49°
6
62°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Mouton
Port Mouton's May 2026 forecast shows daily high temperatures ranging from 53° to 76°, with overnight lows between 42° and 50°. The average high for May is 60° with an average low of 45°. 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 Mouton. See also: June | July | August.
