S
M
T
W
T
F
S
30
98°
72°
31
98°
72°
1
91°
75°
2
95°
76°
3
86°
76°
4
91°
75°
5
N/A
6
90°
73°
7
94°
73°
8
94°
72°
9
92°
73°
10
94°
74°
11
97°
76°
12
95°
74°
13
94°
73°
14
95°
75°
15
94°
72°
16
93°
73°
17
94°
74°
18
93°
71°
19
90°
68°
20
92°
72°
21
92°
72°
22
92°
72°
23
91°
71°
24
90°
72°
25
88°
72°
26
90°
71°
27
90°
71°
28
89°
70°
29
90°
71°
30
87°
66°
1
82°
61°
2
80°
61°
3
81°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Decker Prairie
Decker Prairie's September 2026 forecast shows daily high temperatures ranging from 80° to 97°, with overnight lows between 60° and 76°. The average high for September is 91° with an average low of 71°. 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 Decker Prairie. See also: October | November | December.
