S
M
T
W
T
F
S
30
105°
67°
31
103°
66°
1
102°
69°
2
102°
70°
3
100°
72°
4
100°
69°
5
102°
68°
6
105°
70°
7
103°
71°
8
103°
76°
9
103°
72°
10
87°
67°
11
94°
70°
12
94°
70°
13
97°
70°
14
95°
66°
15
84°
62°
16
85°
61°
17
85°
56°
18
82°
57°
19
77°
55°
20
80°
56°
21
84°
66°
22
88°
63°
23
89°
62°
24
87°
62°
25
78°
61°
26
81°
61°
27
82°
60°
28
84°
61°
29
82°
60°
30
82°
52°
1
73°
47°
2
72°
46°
3
72°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Dewey
Dewey's September 2026 forecast shows daily high temperatures ranging from 72° to 103°, with overnight lows between 46° and 76°. The average high for September is 85° with an average low of 61°. 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 Dewey. See also: October | November | December.
