S
M
T
W
T
F
S
30
89°
67°
31
89°
67°
1
88°
66°
2
89°
67°
3
89°
66°
4
88°
65°
5
89°
66°
6
89°
67°
7
88°
67°
8
90°
66°
9
90°
66°
10
88°
65°
11
88°
66°
12
89°
66°
13
89°
65°
14
78°
54°
15
76°
61°
16
78°
62°
17
77°
56°
18
85°
53°
19
76°
51°
20
77°
51°
21
78°
55°
22
82°
58°
23
83°
57°
24
78°
51°
25
74°
56°
26
78°
59°
27
82°
54°
28
79°
48°
29
71°
48°
30
72°
51°
1
74°
55°
2
80°
55°
3
80°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Deer Plain
Deer Plain's September 2026 forecast shows daily high temperatures ranging from 71° to 90°, with overnight lows between 48° and 67°. The average high for September is 83° with an average low of 59°. 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 Deer Plain. See also: October | November | December.
