S
M
T
W
T
F
S
30
81°
64°
31
86°
70°
1
91°
74°
2
91°
70°
3
91°
70°
4
86°
70°
5
81°
64°
6
77°
59°
7
79°
62°
8
85°
69°
9
87°
67°
10
75°
54°
11
79°
60°
12
82°
62°
13
81°
65°
14
83°
65°
15
77°
59°
16
75°
54°
17
77°
56°
18
77°
54°
19
74°
55°
20
72°
52°
21
78°
57°
22
69°
57°
23
71°
56°
24
77°
57°
25
78°
57°
26
78°
56°
27
77°
56°
28
78°
57°
29
78°
58°
30
77°
57°
1
78°
55°
2
74°
49°
3
64°
45°
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 64° to 87°, with overnight lows between 45° and 69°. The average high for September is 77° with an average low of 57°. 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.
