S
M
T
W
T
F
S
26
54°
37°
27
69°
38°
28
70°
46°
29
48°
39°
30
48°
35°
1
45°
37°
2
46°
34°
3
64°
35°
4
74°
46°
5
54°
42°
6
49°
36°
7
51°
39°
8
57°
44°
9
66°
48°
10
52°
40°
11
54°
39°
12
54°
43°
13
59°
48°
14
59°
46°
15
64°
47°
16
61°
46°
17
60°
46°
18
57°
55°
19
63°
53°
20
67°
53°
21
67°
49°
22
62°
45°
23
60°
45°
24
62°
46°
25
61°
47°
26
62°
46°
27
62°
46°
28
63°
46°
29
63°
47°
30
64°
54°
31
70°
53°
1
65°
51°
2
66°
54°
3
72°
58°
4
72°
57°
5
71°
59°
6
76°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Huron
Port Huron's May 2026 forecast shows daily high temperatures ranging from 49° to 76°, with overnight lows between 36° and 60°. The average high for May is 62° with an average low of 48°. 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 Huron. See also: June | July | August.
