S
M
T
W
T
F
S
30
65°
42°
31
65°
42°
1
66°
41°
2
65°
34°
3
60°
32°
4
54°
32°
5
61°
34°
6
63°
39°
7
63°
39°
8
62°
38°
9
62°
37°
10
59°
38°
11
54°
35°
12
51°
34°
13
51°
31°
14
50°
37°
15
50°
37°
16
54°
36°
17
58°
34°
18
58°
33°
19
54°
33°
20
53°
31°
21
51°
30°
22
51°
30°
23
50°
29°
24
46°
28°
25
47°
28°
26
43°
27°
27
42°
26°
28
39°
22°
29
39°
23°
30
38°
26°
1
39°
25°
2
41°
24°
3
41°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chalkyitsik
Chalkyitsik's September 2026 forecast shows daily high temperatures ranging from 38° to 66°, with overnight lows between 22° and 42°. The average high for September is 53° with an average low of 32°. 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 Chalkyitsik. See also: October | November | December.
