S
M
T
W
T
F
S
30
94°
72°
31
93°
73°
1
93°
71°
2
94°
71°
3
93°
72°
4
93°
70°
5
95°
71°
6
95°
72°
7
94°
73°
8
95°
73°
9
94°
71°
10
95°
68°
11
93°
69°
12
93°
69°
13
90°
66°
14
88°
65°
15
89°
64°
16
88°
66°
17
91°
65°
18
91°
67°
19
92°
70°
20
92°
67°
21
92°
69°
22
Hist. Avg.
88°
64°
23
Hist. Avg.
88°
63°
24
Hist. Avg.
88°
63°
25
Hist. Avg.
87°
63°
26
Hist. Avg.
87°
62°
27
Hist. Avg.
87°
62°
28
Hist. Avg.
87°
62°
29
Hist. Avg.
86°
62°
30
Hist. Avg.
86°
61°
1
Hist. Avg.
86°
61°
2
Hist. Avg.
86°
60°
3
Hist. Avg.
85°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Coupland
Coupland's September 2026 forecast shows daily high temperatures ranging from 88° to 95°, with overnight lows between 64° and 73°. The average high for September is 92° with an average low of 69°. 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 Coupland. See also: October | November | December.