S
M
T
W
T
F
S
30
94°
70°
31
94°
70°
1
93°
69°
2
94°
69°
3
94°
70°
4
93°
69°
5
93°
68°
6
92°
68°
7
92°
63°
8
87°
63°
9
88°
64°
10
92°
65°
11
92°
62°
12
91°
64°
13
90°
65°
14
91°
66°
15
90°
65°
16
90°
63°
17
89°
61°
18
86°
62°
19
85°
64°
20
88°
58°
21
85°
58°
22
83°
59°
23
83°
61°
24
84°
63°
25
84°
63°
26
88°
62°
27
88°
62°
28
87°
61°
29
86°
61°
30
84°
59°
1
87°
60°
2
86°
54°
3
81°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Crosby
Crosby's September 2026 forecast shows daily high temperatures ranging from 81° to 94°, with overnight lows between 54° and 70°. The average high for September is 89° with an average low of 63°. 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 Crosby. See also: October | November | December.
