S
M
T
W
T
F
S
30
66°
51°
31
56°
43°
1
66°
47°
2
66°
46°
3
62°
42°
4
59°
38°
5
61°
52°
6
55°
51°
7
56°
50°
8
59°
51°
9
66°
54°
10
68°
54°
11
63°
48°
12
66°
45°
13
69°
50°
14
67°
50°
15
56°
51°
16
55°
49°
17
56°
49°
18
47°
41°
19
50°
39°
20
50°
40°
21
49°
39°
22
49°
34°
23
50°
33°
24
51°
39°
25
50°
37°
26
49°
36°
27
48°
36°
28
48°
34°
29
49°
34°
30
48°
35°
1
47°
32°
2
42°
27°
3
40°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Moose Pass
Moose Pass's September 2026 forecast shows daily high temperatures ranging from 40° to 51°, with overnight lows between 25° and 41°. The average high for September is 48° with an average low of 35°. 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 Moose Pass. See also: October | November | December.