S
M
T
W
T
F
S
30
94°
60°
31
95°
58°
1
94°
57°
2
92°
56°
3
92°
58°
4
93°
60°
5
94°
62°
6
94°
58°
7
89°
56°
8
87°
58°
9
90°
58°
10
89°
53°
11
87°
53°
12
87°
52°
13
86°
53°
14
86°
51°
15
85°
55°
16
85°
54°
17
89°
53°
18
88°
52°
19
85°
55°
20
89°
57°
21
90°
56°
22
90°
56°
23
85°
58°
24
Hist. Avg.
87°
55°
25
Hist. Avg.
87°
55°
26
Hist. Avg.
86°
55°
27
Hist. Avg.
86°
54°
28
Hist. Avg.
86°
54°
29
Hist. Avg.
86°
54°
30
Hist. Avg.
85°
54°
1
Hist. Avg.
85°
54°
2
Hist. Avg.
85°
54°
3
Hist. Avg.
84°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Armstrong
Armstrong's September 2026 forecast shows daily high temperatures ranging from 85° to 95°, with overnight lows between 51° and 62°. The average high for September is 89° with an average low of 56°. 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. See also: October | November | December.
