S
M
T
W
T
F
S
30
78°
69°
31
91°
73°
1
95°
72°
2
96°
72°
3
94°
70°
4
96°
71°
5
91°
70°
6
84°
60°
7
82°
58°
8
88°
58°
9
80°
68°
10
82°
60°
11
82°
55°
12
86°
58°
13
73°
49°
14
71°
47°
15
83°
66°
16
72°
64°
17
87°
65°
18
75°
64°
19
69°
64°
20
71°
61°
21
65°
56°
22
66°
53°
23
73°
51°
24
73°
54°
25
69°
55°
26
75°
46°
27
78°
49°
28
79°
47°
29
82°
48°
30
69°
61°
1
69°
57°
2
69°
46°
3
72°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sterling
Sterling's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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.
