S
M
T
W
T
F
S
30
71°
52°
31
68°
51°
1
70°
51°
2
70°
50°
3
67°
51°
4
67°
45°
5
66°
51°
6
72°
51°
7
65°
42°
8
64°
39°
9
62°
37°
10
63°
36°
11
62°
36°
12
60°
37°
13
60°
33°
14
58°
35°
15
61°
41°
16
66°
45°
17
71°
42°
18
70°
45°
19
73°
49°
20
73°
47°
21
72°
48°
22
69°
45°
23
72°
45°
24
68°
34°
25
67°
32°
26
55°
33°
27
58°
35°
28
59°
37°
29
54°
39°
30
64°
40°
1
63°
41°
2
65°
40°
3
66°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rivers
Rivers's September 2026 forecast shows daily high temperatures ranging from 54° to 73°, with overnight lows between 32° and 52°. The average high for September is 65° with an average low of 42°. 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 Rivers. See also: October | November | December.
