S
M
T
W
T
F
S
30
63°
42°
31
61°
42°
1
62°
41°
2
62°
41°
3
61°
42°
4
60°
45°
5
57°
45°
6
56°
46°
7
55°
43°
8
56°
39°
9
56°
43°
10
55°
44°
11
54°
40°
12
54°
44°
13
56°
42°
14
54°
40°
15
54°
42°
16
Hist. Avg.
55°
37°
17
Hist. Avg.
55°
36°
18
Hist. Avg.
54°
36°
19
Hist. Avg.
54°
36°
20
Hist. Avg.
54°
36°
21
Hist. Avg.
54°
36°
22
Hist. Avg.
53°
36°
23
Hist. Avg.
53°
35°
24
Hist. Avg.
52°
35°
25
Hist. Avg.
52°
35°
26
Hist. Avg.
52°
35°
27
Hist. Avg.
51°
34°
28
Hist. Avg.
51°
34°
29
Hist. Avg.
51°
34°
30
Hist. Avg.
50°
33°
1
Hist. Avg.
50°
33°
2
Hist. Avg.
50°
33°
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 Sterling
Sterling's September 2026 forecast shows daily high temperatures ranging from 54° to 63°, with overnight lows between 39° and 46°. The average high for September is 57° with an average low of 42°. 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 Sterling. See also: October | November | December.
