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°
73°
12
88°
74°
13
89°
74°
14
91°
74°
15
93°
73°
16
90°
72°
17
91°
71°
18
90°
70°
19
89°
66°
20
86°
66°
21
88°
65°
22
87°
66°
23
87°
66°
24
86°
65°
25
86°
68°
26
83°
67°
27
84°
68°
28
85°
67°
29
86°
67°
30
86°
66°
1
87°
67°
2
84°
66°
3
84°
66°
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 83° to 93°, with overnight lows between 65° and 74°. The average high for September is 87° 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.
