S
M
T
W
T
F
S
30
85°
59°
31
84°
60°
1
85°
59°
2
84°
58°
3
82°
58°
4
81°
60°
5
83°
62°
6
87°
63°
7
89°
60°
8
82°
60°
9
81°
63°
10
81°
64°
11
87°
63°
12
88°
56°
13
82°
63°
14
80°
64°
15
88°
64°
16
87°
61°
17
86°
53°
18
78°
56°
19
79°
62°
20
85°
53°
21
86°
50°
22
76°
49°
23
80°
60°
24
83°
60°
25
Hist. Avg.
83°
55°
26
Hist. Avg.
82°
54°
27
Hist. Avg.
82°
54°
28
Hist. Avg.
82°
54°
29
Hist. Avg.
81°
53°
30
Hist. Avg.
81°
52°
1
Hist. Avg.
80°
52°
2
Hist. Avg.
80°
52°
3
Hist. Avg.
79°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Arnett
Arnett's September 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 49° and 64°. The average high for September is 83° 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 Arnett. See also: October | November | December.
