S
M
T
W
T
F
S
30
76°
58°
31
75°
57°
1
76°
59°
2
75°
54°
3
74°
48°
4
66°
47°
5
66°
56°
6
69°
58°
7
74°
56°
8
73°
54°
9
70°
49°
10
69°
55°
11
72°
56°
12
73°
57°
13
73°
56°
14
72°
54°
15
72°
49°
16
68°
48°
17
66°
50°
18
68°
48°
19
64°
44°
20
61°
42°
21
59°
42°
22
60°
52°
23
62°
48°
24
62°
42°
25
59°
42°
26
60°
50°
27
66°
51°
28
67°
42°
29
66°
43°
30
60°
46°
1
59°
44°
2
65°
42°
3
58°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Port Severn
Port Severn's September 2026 forecast shows daily high temperatures ranging from 58° to 76°, with overnight lows between 42° and 59°. The average high for September is 67° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Port Severn. See also: October | November | December.
