S
M
T
W
T
F
S
26
78°
63°
27
77°
56°
28
72°
56°
29
72°
60°
30
73°
58°
31
72°
61°
1
75°
55°
2
73°
53°
3
72°
54°
4
71°
53°
5
72°
54°
6
75°
56°
7
76°
56°
8
75°
54°
9
76°
58°
10
77°
60°
11
79°
59°
12
78°
61°
13
79°
62°
14
79°
60°
15
77°
54°
16
76°
52°
17
70°
52°
18
69°
53°
19
67°
55°
20
68°
53°
21
68°
59°
22
74°
59°
23
72°
60°
24
79°
59°
25
78°
52°
26
77°
50°
27
68°
49°
28
67°
48°
29
68°
56°
30
68°
59°
31
75°
59°
1
75°
57°
2
76°
53°
3
73°
54°
4
75°
56°
5
74°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Port Severn
Port Severn's August 2026 forecast shows daily high temperatures ranging from 67° to 79°, with overnight lows between 48° and 63°. The average high for August is 74° with an average low of 56°. 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 Severn. See also: September | October | November.