S
M
T
W
T
F
S
30
68°
44°
31
66°
45°
1
67°
44°
2
65°
46°
3
66°
44°
4
64°
39°
5
59°
35°
6
56°
37°
7
56°
34°
8
55°
36°
9
53°
35°
10
53°
33°
11
54°
36°
12
53°
35°
13
54°
36°
14
53°
39°
15
51°
34°
16
51°
35°
17
52°
36°
18
52°
39°
19
58°
39°
20
51°
31°
21
59°
38°
22
56°
36°
23
Hist. Avg.
54°
35°
24
Hist. Avg.
53°
34°
25
Hist. Avg.
53°
34°
26
Hist. Avg.
52°
34°
27
Hist. Avg.
52°
34°
28
Hist. Avg.
52°
33°
29
Hist. Avg.
51°
33°
30
Hist. Avg.
51°
33°
1
Hist. Avg.
50°
32°
2
Hist. Avg.
50°
32°
3
Hist. Avg.
49°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lower Post
Lower Post's September 2026 forecast shows daily high temperatures ranging from 51° to 68°, with overnight lows between 31° and 46°. The average high for September is 57° with an average low of 38°. 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 Lower Post. See also: October | November | December.
