S
M
T
W
T
F
S
30
87°
75°
31
87°
73°
1
90°
73°
2
90°
72°
3
91°
73°
4
90°
73°
5
93°
72°
6
94°
72°
7
91°
71°
8
90°
72°
9
91°
71°
10
92°
69°
11
90°
69°
12
87°
71°
13
88°
70°
14
84°
71°
15
85°
70°
16
84°
70°
17
84°
69°
18
85°
70°
19
84°
70°
20
83°
69°
21
83°
69°
22
82°
68°
23
84°
68°
24
84°
67°
25
85°
68°
26
86°
68°
27
88°
67°
28
88°
66°
29
87°
65°
30
87°
67°
1
83°
66°
2
82°
66°
3
83°
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 82° to 94°, with overnight lows between 65° and 75°. The average high for September is 87° with an average low of 70°. 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.
