S
M
T
W
T
F
S
30
69°
47°
31
68°
48°
1
69°
46°
2
68°
52°
3
71°
47°
4
68°
46°
5
69°
49°
6
68°
47°
7
66°
45°
8
69°
51°
9
70°
44°
10
65°
44°
11
69°
48°
12
71°
51°
13
69°
50°
14
64°
48°
15
69°
52°
16
71°
52°
17
71°
51°
18
70°
46°
19
69°
41°
20
65°
41°
21
59°
45°
22
61°
43°
23
64°
41°
24
61°
44°
25
61°
39°
26
62°
37°
27
58°
40°
28
59°
39°
29
56°
39°
30
56°
39°
1
55°
36°
2
55°
33°
3
Hist. Avg.
62°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Armstrong Creek
Armstrong Creek's September 2026 forecast shows daily high temperatures ranging from 55° to 71°, with overnight lows between 33° and 52°. The average high for September is 65° with an average low of 45°. 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 Armstrong Creek. See also: October | November | December.
