S
M
T
W
T
F
S
30
99°
71°
31
100°
73°
1
98°
75°
2
99°
77°
3
99°
76°
4
99°
74°
5
101°
75°
6
101°
73°
7
97°
76°
8
100°
74°
9
101°
75°
10
82°
70°
11
90°
67°
12
87°
68°
13
94°
68°
14
97°
74°
15
100°
76°
16
98°
77°
17
98°
75°
18
99°
74°
19
96°
70°
20
96°
68°
21
83°
67°
22
83°
65°
23
79°
60°
24
78°
56°
25
81°
56°
26
78°
64°
27
79°
62°
28
82°
62°
29
86°
64°
30
90°
72°
1
85°
69°
2
74°
60°
3
77°
54°
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 77° to 77°, with overnight lows between 54° and 54°. The average high for September is 77° with an average low of 54°. 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.
