S
M
T
W
T
F
S
30
84°
66°
31
86°
71°
1
86°
64°
2
87°
64°
3
83°
70°
4
91°
74°
5
78°
69°
6
76°
67°
7
78°
65°
8
80°
64°
9
82°
63°
10
79°
57°
11
82°
59°
12
73°
58°
13
69°
51°
14
61°
48°
15
70°
55°
16
73°
51°
17
68°
58°
18
64°
56°
19
61°
56°
20
66°
48°
21
59°
47°
22
60°
44°
23
64°
52°
24
64°
51°
25
68°
53°
26
65°
53°
27
67°
53°
28
68°
51°
29
65°
49°
30
68°
50°
1
69°
52°
2
65°
42°
3
61°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Plainview
Plainview's September 2026 forecast shows daily high temperatures ranging from 59° to 69°, with overnight lows between 42° and 53°. The average high for September is 65° with an average low of 50°. 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 Plainview. See also: October | November | December.
