S
M
T
W
T
F
S
30
73°
55°
31
70°
56°
1
71°
55°
2
75°
53°
3
75°
50°
4
76°
50°
5
74°
55°
6
76°
56°
7
76°
56°
8
75°
54°
9
73°
55°
10
76°
55°
11
75°
54°
12
75°
55°
13
74°
54°
14
74°
55°
15
73°
52°
16
74°
46°
17
71°
45°
18
65°
52°
19
68°
53°
20
73°
53°
21
71°
51°
22
71°
49°
23
67°
46°
24
70°
43°
25
Hist. Avg.
66°
46°
26
Hist. Avg.
65°
46°
27
Hist. Avg.
65°
45°
28
Hist. Avg.
64°
45°
29
Hist. Avg.
64°
44°
30
Hist. Avg.
64°
44°
1
Hist. Avg.
63°
44°
2
Hist. Avg.
63°
43°
3
Hist. Avg.
62°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Ellsworth
Ellsworth's September 2026 forecast shows daily high temperatures ranging from 65° to 76°, with overnight lows between 43° and 56°. The average high for September is 73° with an average low of 52°. 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 Ellsworth. See also: October | November | December.