S
M
T
W
T
F
S
30
84°
64°
31
91°
65°
1
92°
72°
2
94°
70°
3
94°
71°
4
95°
72°
5
94°
70°
6
83°
63°
7
82°
59°
8
86°
58°
9
84°
66°
10
74°
63°
11
82°
59°
12
89°
65°
13
80°
57°
14
78°
53°
15
97°
62°
16
87°
71°
17
93°
71°
18
75°
69°
19
80°
70°
20
83°
64°
21
65°
59°
22
72°
56°
23
65°
58°
24
72°
58°
25
73°
57°
26
76°
50°
27
77°
49°
28
77°
46°
29
82°
48°
30
73°
59°
1
88°
62°
2
71°
47°
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 ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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.
