S
M
T
W
T
F
S
30
108°
79°
31
107°
78°
1
106°
80°
2
109°
82°
3
110°
78°
4
108°
76°
5
102°
75°
6
103°
78°
7
101°
74°
8
100°
72°
9
100°
73°
10
101°
74°
11
101°
74°
12
103°
76°
13
105°
78°
14
106°
76°
15
105°
73°
16
102°
73°
17
99°
71°
18
98°
70°
19
97°
71°
20
98°
70°
21
101°
77°
22
101°
75°
23
96°
74°
24
94°
72°
25
95°
67°
26
94°
66°
27
93°
67°
28
94°
69°
29
94°
68°
30
100°
72°
1
92°
70°
2
95°
71°
3
Hist. Avg.
94°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Powell
Powell's September 2026 forecast shows daily high temperatures ranging from 92° to 110°, with overnight lows between 66° and 82°. The average high for September is 101° with an average low of 74°. 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 Powell. See also: October | November | December.