S
M
T
W
T
F
S
30
61°
39°
31
59°
35°
1
60°
41°
2
68°
43°
3
70°
44°
4
69°
34°
5
64°
36°
6
61°
34°
7
60°
39°
8
65°
38°
9
63°
34°
10
64°
32°
11
58°
35°
12
61°
37°
13
57°
30°
14
56°
28°
15
53°
28°
16
54°
29°
17
54°
35°
18
58°
39°
19
63°
39°
20
64°
32°
21
56°
29°
22
54°
26°
23
53°
26°
24
52°
28°
25
53°
27°
26
58°
28°
27
53°
34°
28
59°
35°
29
63°
37°
30
51°
26°
1
50°
26°
2
Hist. Avg.
56°
31°
3
Hist. Avg.
56°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Steeper
Steeper's September 2026 forecast shows daily high temperatures ranging from 50° to 70°, with overnight lows between 26° and 44°. The average high for September is 59° with an average low of 33°. 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 Steeper. See also: October | November | December.
