S
M
T
W
T
F
S
30
87°
68°
31
86°
67°
1
86°
67°
2
85°
65°
3
84°
65°
4
84°
66°
5
86°
68°
6
87°
69°
7
86°
67°
8
82°
65°
9
80°
64°
10
81°
66°
11
83°
67°
12
82°
68°
13
83°
64°
14
80°
67°
15
81°
62°
16
82°
63°
17
82°
63°
18
80°
62°
19
80°
64°
20
83°
66°
21
81°
62°
22
80°
61°
23
82°
62°
24
81°
61°
25
78°
62°
26
80°
61°
27
83°
59°
28
78°
58°
29
77°
60°
30
78°
64°
1
81°
63°
2
82°
65°
3
84°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Commerce
Commerce's September 2026 forecast shows daily high temperatures ranging from 77° to 87°, with overnight lows between 58° and 69°. The average high for September is 82° with an average low of 64°. 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 Commerce. See also: October | November | December.
