S
M
T
W
T
F
S
30
76°
43°
31
70°
47°
1
72°
47°
2
71°
42°
3
72°
45°
4
77°
50°
5
73°
42°
6
71°
40°
7
69°
39°
8
69°
39°
9
67°
38°
10
68°
38°
11
68°
40°
12
72°
44°
13
76°
43°
14
75°
44°
15
76°
47°
16
75°
40°
17
71°
37°
18
65°
36°
19
66°
35°
20
71°
43°
21
71°
38°
22
64°
40°
23
68°
44°
24
64°
42°
25
61°
40°
26
61°
42°
27
59°
37°
28
58°
32°
29
58°
39°
30
60°
43°
1
59°
40°
2
60°
33°
3
59°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ellison
Ellison's September 2026 forecast shows daily high temperatures ranging from 58° to 77°, with overnight lows between 31° and 50°. The average high for September is 68° with an average low of 41°. 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 Ellison. See also: October | November | December.