S
M
T
W
T
F
S
30
73°
52°
31
72°
51°
1
71°
50°
2
71°
50°
3
72°
51°
4
77°
56°
5
75°
53°
6
70°
55°
7
71°
47°
8
70°
49°
9
70°
56°
10
76°
56°
11
74°
51°
12
73°
49°
13
67°
47°
14
66°
46°
15
65°
45°
16
65°
45°
17
66°
48°
18
66°
51°
19
67°
52°
20
71°
44°
21
67°
42°
22
61°
42°
23
71°
51°
24
71°
52°
25
Hist. Avg.
67°
45°
26
Hist. Avg.
66°
44°
27
Hist. Avg.
66°
44°
28
Hist. Avg.
65°
44°
29
Hist. Avg.
65°
43°
30
Hist. Avg.
64°
43°
1
Hist. Avg.
64°
42°
2
Hist. Avg.
64°
42°
3
Hist. Avg.
63°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Chili
Chili's September 2026 forecast shows daily high temperatures ranging from 61° to 77°, with overnight lows between 42° and 56°. The average high for September is 70° with an average low of 50°. 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.
