S
M
T
W
T
F
S
30
82°
60°
31
79°
59°
1
77°
64°
2
76°
60°
3
78°
55°
4
76°
60°
5
76°
64°
6
83°
63°
7
85°
64°
8
84°
62°
9
84°
59°
10
76°
62°
11
76°
61°
12
73°
62°
13
83°
59°
14
82°
57°
15
Hist. Avg.
76°
55°
16
Hist. Avg.
76°
55°
17
Hist. Avg.
75°
54°
18
Hist. Avg.
75°
54°
19
Hist. Avg.
75°
53°
20
Hist. Avg.
74°
53°
21
Hist. Avg.
74°
52°
22
Hist. Avg.
73°
52°
23
Hist. Avg.
73°
51°
24
Hist. Avg.
72°
51°
25
Hist. Avg.
72°
50°
26
Hist. Avg.
72°
50°
27
Hist. Avg.
71°
50°
28
Hist. Avg.
71°
49°
29
Hist. Avg.
70°
49°
30
Hist. Avg.
70°
48°
1
Hist. Avg.
69°
48°
2
Hist. Avg.
69°
47°
3
Hist. Avg.
68°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Crest Hill
Crest Hill's September 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 55° and 64°. The average high for September is 79° with an average low of 61°. 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 Crest Hill. See also: October | November | December.
