S
M
T
W
T
F
S
30
92°
75°
31
90°
75°
1
91°
75°
2
94°
74°
3
94°
78°
4
86°
73°
5
90°
75°
6
94°
73°
7
96°
73°
8
91°
72°
9
92°
73°
10
82°
72°
11
87°
74°
12
92°
72°
13
94°
74°
14
93°
73°
15
94°
74°
16
90°
69°
17
92°
66°
18
92°
67°
19
89°
70°
20
91°
68°
21
89°
69°
22
87°
68°
23
87°
66°
24
89°
65°
25
88°
65°
26
89°
66°
27
84°
68°
28
85°
68°
29
84°
67°
30
85°
67°
1
84°
66°
2
85°
66°
3
86°
65°
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 84° to 94°, with overnight lows between 65° and 74°. The average high for September is 88° with an average low of 68°. 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.
