S
M
T
W
T
F
S
30
90°
66°
31
86°
69°
1
97°
73°
2
89°
72°
3
93°
72°
4
92°
72°
5
83°
65°
6
85°
60°
7
81°
59°
8
85°
65°
9
89°
68°
10
91°
67°
11
81°
60°
12
83°
68°
13
88°
69°
14
90°
68°
15
89°
69°
16
85°
61°
17
82°
64°
18
81°
64°
19
82°
62°
20
80°
60°
21
84°
65°
22
81°
64°
23
77°
64°
24
77°
63°
25
78°
62°
26
82°
62°
27
81°
61°
28
80°
62°
29
81°
62°
30
81°
61°
1
80°
61°
2
78°
60°
3
79°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chillum
Chillum's September 2026 forecast shows daily high temperatures ranging from 77° to 91°, with overnight lows between 59° and 69°. The average high for September is 82° with an average low of 63°. 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 Chillum. See also: October | November | December.