S
M
T
W
T
F
S
30
75°
54°
31
76°
55°
1
75°
54°
2
75°
46°
3
71°
44°
4
66°
53°
5
68°
53°
6
74°
46°
7
71°
44°
8
64°
42°
9
65°
48°
10
67°
52°
11
69°
53°
12
73°
51°
13
72°
47°
14
66°
44°
15
62°
41°
16
62°
47°
17
64°
44°
18
62°
41°
19
68°
38°
20
60°
38°
21
59°
48°
22
63°
47°
23
68°
41°
24
64°
46°
25
64°
47°
26
62°
47°
27
68°
40°
28
67°
39°
29
60°
41°
30
56°
44°
1
61°
40°
2
64°
44°
3
55°
34°
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 76°, with overnight lows between 34° and 55°. The average high for September is 66° 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 Armstrong Creek. See also: October | November | December.
