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
95°
73°
15
94°
73°
16
94°
75°
17
94°
66°
18
94°
69°
19
96°
70°
20
95°
73°
21
92°
72°
22
92°
70°
23
91°
71°
24
92°
70°
25
89°
68°
26
90°
68°
27
88°
67°
28
89°
66°
29
87°
67°
30
85°
62°
1
84°
66°
2
81°
66°
3
84°
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 81° to 96°, with overnight lows between 62° and 73°. The average high for September is 90° 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.
