S
M
T
W
T
F
S
30
81°
50°
31
83°
45°
1
71°
51°
2
74°
56°
3
71°
53°
4
80°
46°
5
71°
45°
6
70°
49°
7
75°
54°
8
77°
46°
9
71°
44°
10
67°
50°
11
68°
47°
12
67°
43°
13
65°
44°
14
67°
45°
15
67°
50°
16
68°
50°
17
72°
43°
18
73°
43°
19
62°
49°
20
65°
47°
21
64°
42°
22
63°
41°
23
63°
39°
24
64°
45°
25
64°
43°
26
64°
44°
27
Hist. Avg.
65°
41°
28
Hist. Avg.
65°
41°
29
Hist. Avg.
64°
40°
30
Hist. Avg.
64°
40°
1
Hist. Avg.
63°
40°
2
Hist. Avg.
62°
39°
3
Hist. Avg.
62°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Rainy River
Rainy River's September 2026 forecast shows daily high temperatures ranging from 62° to 83°, with overnight lows between 39° and 56°. The average high for September is 70° with an average low of 47°. 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 Rainy River. See also: October | November | December.
