S
M
T
W
T
F
S
30
81°
69°
31
91°
72°
1
94°
77°
2
96°
78°
3
92°
79°
4
93°
78°
5
83°
73°
6
79°
71°
7
80°
66°
8
87°
66°
9
80°
71°
10
76°
65°
11
81°
61°
12
88°
68°
13
75°
56°
14
72°
53°
15
85°
68°
16
75°
68°
17
82°
68°
18
72°
66°
19
72°
63°
20
69°
61°
21
65°
59°
22
64°
57°
23
65°
60°
24
71°
58°
25
66°
52°
26
69°
53°
27
72°
54°
28
74°
56°
29
78°
59°
30
71°
56°
1
69°
51°
2
70°
54°
3
75°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Willow Springs
Willow Springs's September 2026 forecast shows daily high temperatures ranging from 66° to 78°, with overnight lows between 51° and 59°. The average high for September is 72° with an average low of 55°. 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 Willow Springs. See also: October | November | December.
