S
M
T
W
T
F
S
30
75°
45°
31
76°
43°
1
75°
48°
2
76°
48°
3
75°
46°
4
68°
45°
5
70°
44°
6
73°
46°
7
74°
46°
8
70°
45°
9
68°
42°
10
67°
44°
11
70°
39°
12
68°
39°
13
68°
40°
14
69°
44°
15
72°
44°
16
73°
41°
17
70°
38°
18
66°
37°
19
69°
38°
20
70°
38°
21
71°
41°
22
69°
36°
23
71°
43°
24
64°
35°
25
Hist. Avg.
74°
43°
26
Hist. Avg.
74°
43°
27
Hist. Avg.
74°
42°
28
Hist. Avg.
73°
42°
29
Hist. Avg.
73°
41°
30
Hist. Avg.
73°
41°
1
Hist. Avg.
72°
41°
2
Hist. Avg.
72°
40°
3
Hist. Avg.
71°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cowles
Cowles's September 2026 forecast shows daily high temperatures ranging from 64° to 76°, with overnight lows between 35° and 48°. The average high for September is 71° with an average low of 42°. 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 Cowles. See also: October | November | December.
