S
M
T
W
T
F
S
30
90°
66°
31
89°
65°
1
93°
70°
2
91°
71°
3
94°
69°
4
91°
68°
5
84°
62°
6
82°
62°
7
83°
61°
8
80°
59°
9
81°
60°
10
82°
63°
11
83°
58°
12
82°
59°
13
83°
56°
14
81°
57°
15
77°
61°
16
74°
62°
17
73°
56°
18
73°
52°
19
72°
53°
20
73°
55°
21
77°
57°
22
79°
59°
23
80°
60°
24
80°
58°
25
78°
56°
26
77°
57°
27
78°
58°
28
77°
57°
29
79°
56°
30
73°
52°
1
69°
50°
2
71°
53°
3
75°
55°
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 69° to 94°, with overnight lows between 50° and 71°. The average high for September is 80° with an average low of 59°. 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.
