S
M
T
W
T
F
S
30
90°
72°
31
90°
73°
1
91°
73°
2
89°
72°
3
88°
72°
4
89°
73°
5
89°
73°
6
88°
72°
7
86°
72°
8
85°
71°
9
83°
72°
10
85°
71°
11
84°
71°
12
85°
70°
13
85°
71°
14
86°
71°
15
87°
70°
16
87°
71°
17
88°
70°
18
85°
69°
19
83°
66°
20
84°
65°
21
83°
68°
22
85°
68°
23
87°
67°
24
86°
69°
25
84°
67°
26
86°
67°
27
87°
65°
28
86°
66°
29
87°
67°
30
88°
63°
1
88°
59°
2
82°
65°
3
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Springfield
Springfield's September 2026 forecast shows daily high temperatures ranging from 82° to 91°, with overnight lows between 59° and 73°. The average high for September is 86° with an average low of 69°. 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 Springfield. See also: October | November | December.
