S
M
T
W
T
F
S
30
72°
49°
31
71°
55°
1
72°
51°
2
69°
51°
3
71°
50°
4
76°
55°
5
69°
48°
6
70°
48°
7
71°
49°
8
70°
48°
9
70°
50°
10
71°
49°
11
70°
52°
12
74°
52°
13
76°
51°
14
77°
50°
15
76°
56°
16
77°
58°
17
76°
54°
18
75°
48°
19
72°
46°
20
74°
54°
21
72°
46°
22
67°
50°
23
69°
52°
24
64°
53°
25
63°
49°
26
63°
50°
27
62°
46°
28
62°
46°
29
61°
52°
30
62°
54°
1
63°
52°
2
63°
44°
3
64°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Port Orchard
Port Orchard's September 2026 forecast shows daily high temperatures ranging from 61° to 77°, with overnight lows between 43° and 58°. The average high for September is 70° 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 Orchard. See also: October | November | December.
