S
M
T
W
T
F
S
30
60°
52°
31
59°
50°
1
60°
51°
2
65°
54°
3
59°
55°
4
57°
48°
5
58°
50°
6
57°
50°
7
56°
47°
8
56°
44°
9
55°
49°
10
58°
48°
11
52°
40°
12
50°
41°
13
45°
39°
14
46°
40°
15
51°
46°
16
51°
45°
17
52°
41°
18
50°
41°
19
49°
40°
20
49°
40°
21
48°
41°
22
49°
40°
23
50°
39°
24
48°
38°
25
47°
39°
26
47°
38°
27
46°
37°
28
46°
37°
29
45°
38°
30
46°
39°
1
45°
40°
2
46°
40°
3
45°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chignik Lake
Chignik Lake's September 2026 forecast shows daily high temperatures ranging from 45° to 65°, with overnight lows between 37° and 55°. The average high for September is 51° with an average low of 43°. 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 Chignik Lake. See also: October | November | December.
