S
M
T
W
T
F
S
30
57°
47°
31
56°
45°
1
55°
44°
2
54°
45°
3
54°
43°
4
55°
46°
5
54°
43°
6
54°
43°
7
52°
42°
8
52°
42°
9
53°
43°
10
52°
42°
11
52°
42°
12
53°
41°
13
51°
42°
14
52°
45°
15
53°
42°
16
55°
41°
17
52°
40°
18
50°
41°
19
50°
42°
20
51°
39°
21
52°
39°
22
51°
40°
23
50°
42°
24
51°
40°
25
50°
42°
26
50°
36°
27
52°
42°
28
52°
41°
29
51°
41°
30
52°
40°
1
52°
41°
2
51°
40°
3
51°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Port Heiden
Port Heiden's September 2026 forecast shows daily high temperatures ranging from 50° to 57°, with overnight lows between 36° and 47°. The average high for September is 52° with an average low of 42°. 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 Heiden. See also: October | November | December.
