S
M
T
W
T
F
S
30
83°
72°
31
83°
70°
1
84°
70°
2
84°
69°
3
84°
70°
4
89°
70°
5
89°
70°
6
87°
70°
7
86°
69°
8
85°
69°
9
87°
68°
10
86°
70°
11
88°
69°
12
88°
69°
13
87°
68°
14
87°
69°
15
86°
68°
16
87°
66°
17
87°
67°
18
86°
68°
19
86°
67°
20
85°
68°
21
86°
68°
22
85°
64°
23
83°
66°
24
83°
67°
25
84°
66°
26
82°
65°
27
83°
66°
28
84°
65°
29
80°
64°
30
80°
63°
1
81°
65°
2
82°
65°
3
79°
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 79° to 89°, with overnight lows between 63° and 72°. The average high for September is 85° 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.
