S
M
T
W
T
F
S
30
72°
49°
31
71°
49°
1
70°
50°
2
69°
49°
3
71°
49°
4
70°
48°
5
69°
49°
6
69°
50°
7
68°
51°
8
69°
53°
9
70°
49°
10
70°
48°
11
68°
47°
12
67°
47°
13
68°
51°
14
73°
53°
15
74°
52°
16
74°
53°
17
75°
54°
18
74°
53°
19
65°
45°
20
72°
50°
21
63°
41°
22
63°
43°
23
Hist. Avg.
67°
46°
24
Hist. Avg.
67°
45°
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 63° to 75°, with overnight lows between 41° and 54°. The average high for September is 70° with an average low of 49°. 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.
