S
M
T
W
T
F
S
30
71°
42°
31
70°
41°
1
68°
36°
2
66°
39°
3
65°
38°
4
66°
37°
5
65°
36°
6
68°
40°
7
70°
39°
8
70°
39°
9
69°
38°
10
65°
36°
11
67°
38°
12
68°
37°
13
63°
34°
14
62°
35°
15
67°
38°
16
69°
39°
17
68°
38°
18
69°
31°
19
65°
32°
20
62°
36°
21
68°
37°
22
67°
36°
23
68°
27°
24
61°
28°
25
61°
28°
26
60°
27°
27
Hist. Avg.
65°
31°
28
Hist. Avg.
65°
31°
29
Hist. Avg.
64°
31°
30
Hist. Avg.
64°
30°
1
Hist. Avg.
64°
30°
2
Hist. Avg.
63°
30°
3
Hist. Avg.
63°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Red River
Red River's September 2026 forecast shows daily high temperatures ranging from 60° to 71°, with overnight lows between 27° and 42°. The average high for September is 66° with an average low of 36°. 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 River. See also: October | November | December.
