S
M
T
W
T
F
S
26
80°
66°
27
85°
67°
28
74°
61°
29
74°
60°
30
76°
61°
31
79°
62°
1
78°
61°
2
79°
60°
3
78°
60°
4
81°
63°
5
80°
75°
6
77°
67°
7
80°
68°
8
82°
68°
9
80°
67°
10
76°
66°
11
76°
65°
12
77°
68°
13
82°
67°
14
76°
67°
15
80°
66°
16
75°
67°
17
75°
66°
18
76°
66°
19
75°
64°
20
76°
66°
21
78°
66°
22
77°
65°
23
79°
66°
24
82°
67°
25
82°
67°
26
81°
66°
27
81°
65°
28
74°
63°
29
74°
65°
30
78°
65°
31
81°
66°
1
81°
66°
2
79°
61°
3
70°
59°
4
70°
58°
5
74°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Port Huron
Port Huron's August 2026 forecast shows daily high temperatures ranging from 70° to 85°, with overnight lows between 58° and 75°. The average high for August is 78° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Port Huron. See also: September | October | November.
