S
M
T
W
T
F
S
30
89°
64°
31
69°
59°
1
84°
53°
2
88°
55°
3
87°
55°
4
89°
61°
5
88°
57°
6
91°
55°
7
85°
64°
8
93°
57°
9
96°
53°
10
95°
57°
11
92°
57°
12
90°
61°
13
88°
60°
14
85°
59°
15
86°
57°
16
83°
56°
17
85°
56°
18
83°
57°
19
84°
56°
20
84°
55°
21
82°
46°
22
76°
50°
23
76°
48°
24
77°
50°
25
76°
49°
26
77°
49°
27
76°
48°
28
73°
46°
29
73°
39°
30
69°
37°
1
70°
37°
2
71°
38°
3
72°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Spencerville
Spencerville's September 2026 forecast shows daily high temperatures ranging from 69° to 96°, with overnight lows between 37° and 61°. The average high for September is 81° with an average low of 51°. 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 Spencerville. See also: October | November | December.
