S
M
T
W
T
F
S
30
78°
40°
31
79°
37°
1
77°
40°
2
78°
42°
3
84°
35°
4
77°
35°
5
76°
41°
6
77°
36°
7
77°
35°
8
78°
37°
9
78°
34°
10
77°
37°
11
78°
34°
12
75°
39°
13
75°
41°
14
Hist. Avg.
80°
46°
15
Hist. Avg.
79°
46°
16
Hist. Avg.
79°
46°
17
Hist. Avg.
79°
45°
18
Hist. Avg.
78°
45°
19
Hist. Avg.
78°
45°
20
Hist. Avg.
78°
44°
21
Hist. Avg.
77°
44°
22
Hist. Avg.
77°
44°
23
Hist. Avg.
76°
44°
24
Hist. Avg.
76°
43°
25
Hist. Avg.
76°
43°
26
Hist. Avg.
75°
42°
27
Hist. Avg.
75°
42°
28
Hist. Avg.
74°
42°
29
Hist. Avg.
74°
42°
30
Hist. Avg.
74°
41°
1
Hist. Avg.
73°
41°
2
Hist. Avg.
73°
40°
3
Hist. Avg.
72°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Chilcoot
Chilcoot's September 2026 forecast shows daily high temperatures ranging from 75° to 84°, with overnight lows between 34° and 42°. The average high for September is 78° with an average low of 38°. 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 Chilcoot. See also: October | November | December.
