S
M
T
W
T
F
S
30
72°
47°
31
73°
47°
1
73°
45°
2
71°
47°
3
74°
47°
4
72°
45°
5
73°
49°
6
72°
48°
7
70°
45°
8
72°
49°
9
74°
44°
10
68°
43°
11
73°
45°
12
74°
50°
13
73°
49°
14
68°
47°
15
73°
51°
16
75°
51°
17
75°
50°
18
74°
42°
19
73°
40°
20
69°
40°
21
62°
44°
22
64°
45°
23
69°
43°
24
64°
45°
25
64°
38°
26
64°
36°
27
61°
37°
28
62°
38°
29
59°
37°
30
60°
38°
1
61°
41°
2
Hist. Avg.
64°
44°
3
Hist. Avg.
63°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Stephenson
Stephenson's September 2026 forecast shows daily high temperatures ranging from 59° to 75°, with overnight lows between 36° and 51°. The average high for September is 69° with an average low of 44°. 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 Stephenson. See also: October | November | December.
