S
M
T
W
T
F
S
30
72°
42°
31
82°
36°
1
81°
48°
2
68°
50°
3
67°
46°
4
68°
47°
5
68°
49°
6
76°
49°
7
80°
52°
8
79°
49°
9
81°
51°
10
83°
53°
11
82°
51°
12
80°
52°
13
79°
50°
14
82°
52°
15
81°
46°
16
85°
48°
17
73°
43°
18
73°
44°
19
72°
40°
20
72°
49°
21
73°
46°
22
77°
47°
23
74°
38°
24
70°
37°
25
69°
37°
26
70°
40°
27
79°
43°
28
79°
44°
29
78°
43°
30
79°
44°
1
78°
45°
2
79°
45°
3
78°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Inchelium
Inchelium's September 2026 forecast shows daily high temperatures ranging from 67° to 85°, with overnight lows between 37° and 53°. The average high for September is 76° with an average low of 46°. 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 Inchelium. See also: October | November | December.
