S
M
T
W
T
F
S
30
90°
66°
31
91°
68°
1
93°
70°
2
94°
69°
3
96°
70°
4
95°
72°
5
86°
70°
6
84°
64°
7
86°
62°
8
87°
65°
9
89°
70°
10
80°
66°
11
81°
62°
12
83°
62°
13
84°
61°
14
85°
65°
15
82°
63°
16
77°
52°
17
75°
52°
18
73°
51°
19
71°
47°
20
74°
48°
21
73°
51°
22
76°
56°
23
75°
56°
24
78°
55°
25
79°
56°
26
79°
56°
27
78°
55°
28
79°
56°
29
79°
56°
30
78°
55°
1
78°
55°
2
76°
49°
3
72°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Spencer
Spencer's September 2026 forecast shows daily high temperatures ranging from 71° to 89°, with overnight lows between 44° and 70°. The average high for September is 79° with an average low of 56°. 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 Spencer. See also: October | November | December.
