S
M
T
W
T
F
S
26
49°
36°
27
49°
35°
28
50°
37°
29
55°
43°
30
60°
45°
1
63°
43°
2
53°
39°
3
51°
40°
4
51°
38°
5
52°
41°
6
53°
44°
7
54°
46°
8
59°
43°
9
54°
40°
10
55°
42°
11
59°
47°
12
56°
44°
13
58°
47°
14
57°
44°
15
57°
49°
16
62°
50°
17
67°
48°
18
59°
44°
19
58°
45°
20
61°
51°
21
63°
50°
22
62°
43°
23
64°
42°
24
67°
44°
25
68°
45°
26
67°
47°
27
70°
52°
28
72°
54°
29
72°
49°
30
71°
50°
31
64°
51°
1
66°
48°
2
71°
43°
3
65°
52°
4
69°
58°
5
74°
58°
6
75°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Austin
Port Austin's May 2026 forecast shows daily high temperatures ranging from 49° to 75°, with overnight lows between 35° and 59°. The average high for May is 61° with an average low of 46°. 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 Austin. See also: June | July | August.
