S
M
T
W
T
F
S
30
98°
57°
31
96°
57°
1
98°
56°
2
97°
52°
3
96°
50°
4
99°
52°
5
100°
56°
6
95°
53°
7
92°
46°
8
90°
44°
9
91°
49°
10
95°
49°
11
99°
51°
12
98°
48°
13
97°
52°
14
99°
52°
15
99°
48°
16
95°
46°
17
96°
49°
18
97°
52°
19
97°
50°
20
95°
49°
21
94°
51°
22
92°
49°
23
89°
49°
24
82°
48°
25
85°
47°
26
88°
46°
27
87°
47°
28
88°
48°
29
86°
47°
30
84°
46°
1
81°
46°
2
82°
40°
3
79°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Supai
Supai's September 2026 forecast shows daily high temperatures ranging from 79° to 100°, with overnight lows between 40° and 57°. The average high for September is 92° with an average low of 49°. 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 Supai. See also: October | November | December.
