S
M
T
W
T
F
S
30
84°
61°
31
87°
62°
1
88°
63°
2
86°
61°
3
82°
66°
4
88°
65°
5
88°
66°
6
87°
63°
7
83°
59°
8
82°
65°
9
86°
64°
10
86°
63°
11
83°
65°
12
86°
62°
13
86°
56°
14
79°
56°
15
78°
57°
16
78°
56°
17
79°
58°
18
84°
62°
19
84°
60°
20
83°
61°
21
82°
60°
22
83°
61°
23
82°
53°
24
83°
52°
25
76°
51°
26
77°
53°
27
81°
57°
28
83°
58°
29
Hist. Avg.
77°
53°
30
Hist. Avg.
77°
52°
1
Hist. Avg.
76°
52°
2
Hist. Avg.
76°
51°
3
Hist. Avg.
76°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Metropolis
Metropolis's September 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 51° and 66°. The average high for September is 83° with an average low of 60°. 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 Metropolis. See also: October | November | December.