S
M
T
W
T
F
S
30
89°
68°
31
87°
67°
1
86°
68°
2
87°
66°
3
82°
67°
4
81°
65°
5
83°
64°
6
84°
66°
7
83°
66°
8
81°
65°
9
83°
66°
10
82°
65°
11
83°
65°
12
85°
64°
13
84°
64°
14
82°
63°
15
82°
64°
16
80°
64°
17
85°
63°
18
83°
64°
19
80°
63°
20
77°
62°
21
78°
61°
22
79°
60°
23
81°
59°
24
78°
55°
25
77°
60°
26
75°
60°
27
76°
59°
28
76°
57°
29
75°
59°
30
74°
59°
1
74°
52°
2
73°
50°
3
72°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in The Plains
The Plains's September 2026 forecast shows daily high temperatures ranging from 72° to 89°, with overnight lows between 49° and 68°. The average high for September is 80° with an average low of 62°. 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 The Plains. See also: October | November | December.
