S
M
T
W
T
F
S
30
95°
73°
31
96°
73°
1
93°
72°
2
94°
71°
3
91°
72°
4
92°
73°
5
90°
72°
6
90°
73°
7
94°
73°
8
94°
72°
9
93°
72°
10
94°
71°
11
94°
72°
12
93°
72°
13
94°
71°
14
93°
70°
15
89°
71°
16
90°
71°
17
89°
70°
18
88°
70°
19
87°
71°
20
88°
70°
21
91°
71°
22
88°
70°
23
87°
66°
24
92°
65°
25
86°
65°
26
Hist. Avg.
88°
67°
27
Hist. Avg.
88°
66°
28
Hist. Avg.
88°
66°
29
Hist. Avg.
88°
66°
30
Hist. Avg.
87°
65°
1
Hist. Avg.
87°
65°
2
Hist. Avg.
87°
65°
3
Hist. Avg.
87°
64°
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 86° to 96°, with overnight lows between 65° and 73°. 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.
