S
M
T
W
T
F
S
30
87°
51°
31
85°
53°
1
86°
52°
2
87°
50°
3
86°
54°
4
86°
50°
5
84°
50°
6
85°
51°
7
84°
49°
8
81°
48°
9
82°
45°
10
80°
47°
11
82°
44°
12
84°
46°
13
84°
43°
14
83°
49°
15
83°
48°
16
80°
48°
17
81°
41°
18
78°
38°
19
76°
40°
20
76°
40°
21
77°
42°
22
80°
47°
23
81°
47°
24
75°
45°
25
74°
46°
26
75°
44°
27
74°
42°
28
73°
39°
29
70°
40°
30
79°
40°
1
78°
42°
2
Hist. Avg.
68°
43°
3
Hist. Avg.
68°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chili
Chili's September 2026 forecast shows daily high temperatures ranging from 70° to 87°, with overnight lows between 38° and 54°. The average high for September is 80° with an average low of 46°. 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 Chili. See also: October | November | December.
