S
M
T
W
T
F
S
30
77°
44°
31
78°
46°
1
80°
48°
2
84°
51°
3
87°
54°
4
88°
49°
5
79°
48°
6
78°
51°
7
84°
46°
8
76°
44°
9
75°
48°
10
76°
46°
11
74°
44°
12
75°
43°
13
74°
42°
14
75°
44°
15
75°
49°
16
83°
46°
17
82°
43°
18
80°
49°
19
83°
49°
20
83°
51°
21
82°
47°
22
78°
46°
23
79°
46°
24
77°
44°
25
76°
48°
26
73°
43°
27
69°
47°
28
71°
46°
29
72°
40°
30
68°
42°
1
70°
48°
2
77°
46°
3
68°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Basin City
Basin City's September 2026 forecast shows daily high temperatures ranging from 68° to 88°, with overnight lows between 39° and 54°. The average high for September is 77° with an average low of 46°. 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 Basin City. See also: October | November | December.
