S
M
T
W
T
F
S
30
90°
66°
31
91°
67°
1
91°
65°
2
90°
66°
3
94°
68°
4
94°
70°
5
93°
70°
6
94°
68°
7
90°
68°
8
93°
69°
9
92°
68°
10
92°
68°
11
91°
67°
12
88°
67°
13
91°
66°
14
91°
67°
15
90°
66°
16
91°
66°
17
91°
65°
18
90°
65°
19
88°
64°
20
86°
65°
21
89°
64°
22
89°
65°
23
90°
65°
24
89°
63°
25
89°
63°
26
87°
61°
27
88°
62°
28
88°
62°
29
87°
61°
30
87°
60°
1
86°
61°
2
87°
61°
3
83°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Collins
Collins's September 2026 forecast shows daily high temperatures ranging from 83° to 94°, with overnight lows between 58° and 70°. The average high for September is 90° with an average low of 65°. 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 Collins. See also: October | November | December.