S
M
T
W
T
F
S
30
70°
62°
31
82°
66°
1
88°
56°
2
83°
56°
3
82°
54°
4
73°
62°
5
81°
55°
6
83°
54°
7
79°
57°
8
72°
59°
9
78°
55°
10
73°
47°
11
80°
48°
12
71°
49°
13
64°
36°
14
64°
31°
15
68°
41°
16
70°
40°
17
68°
53°
18
59°
50°
19
58°
51°
20
59°
41°
21
60°
33°
22
63°
33°
23
67°
38°
24
65°
43°
25
68°
43°
26
68°
49°
27
67°
44°
28
64°
47°
29
62°
45°
30
62°
41°
1
64°
44°
2
65°
35°
3
58°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Eagle River
Eagle River's September 2026 forecast shows daily high temperatures ranging from 58° to 68°, with overnight lows between 33° and 49°. The average high for September is 64° 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 Eagle River. See also: October | November | December.
