S
M
T
W
T
F
S
30
80°
61°
31
79°
71°
1
85°
69°
2
72°
67°
3
88°
69°
4
87°
73°
5
81°
71°
6
79°
65°
7
81°
60°
8
82°
64°
9
84°
71°
10
83°
64°
11
80°
58°
12
77°
65°
13
80°
64°
14
83°
61°
15
81°
62°
16
80°
59°
17
78°
58°
18
74°
55°
19
75°
55°
20
73°
54°
21
74°
53°
22
70°
58°
23
70°
57°
24
71°
57°
25
72°
54°
26
76°
53°
27
72°
50°
28
71°
54°
29
76°
56°
30
77°
56°
1
76°
55°
2
75°
56°
3
74°
52°
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 70° to 84°, with overnight lows between 50° and 71°. The average high for September is 76° with an average low of 58°. 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.
