S
M
T
W
T
F
S
30
73°
38°
31
71°
37°
1
70°
40°
2
67°
40°
3
73°
41°
4
73°
37°
5
65°
36°
6
66°
39°
7
69°
38°
8
64°
37°
9
66°
34°
10
64°
38°
11
66°
30°
12
64°
33°
13
64°
32°
14
65°
36°
15
65°
36°
16
66°
33°
17
62°
29°
18
61°
32°
19
65°
33°
20
63°
32°
21
64°
30°
22
65°
34°
23
68°
37°
24
60°
28°
25
59°
29°
26
Hist. Avg.
57°
28°
27
Hist. Avg.
57°
28°
28
Hist. Avg.
56°
28°
29
Hist. Avg.
56°
28°
30
Hist. Avg.
56°
27°
1
Hist. Avg.
55°
27°
2
Hist. Avg.
55°
27°
3
Hist. Avg.
54°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Red Cliff
Red Cliff's September 2026 forecast shows daily high temperatures ranging from 59° to 73°, with overnight lows between 28° and 41°. The average high for September is 66° with an average low of 35°. 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 Red Cliff. See also: October | November | December.
