S
M
T
W
T
F
S
30
78°
65°
31
84°
56°
1
83°
57°
2
83°
60°
3
85°
60°
4
81°
61°
5
83°
60°
6
81°
57°
7
77°
56°
8
76°
54°
9
75°
53°
10
72°
49°
11
72°
48°
12
77°
54°
13
73°
54°
14
74°
54°
15
75°
53°
16
72°
50°
17
72°
53°
18
71°
52°
19
69°
50°
20
72°
52°
21
73°
53°
22
71°
53°
23
73°
52°
24
74°
53°
25
73°
52°
26
72°
52°
27
73°
51°
28
73°
51°
29
72°
50°
30
71°
52°
1
71°
52°
2
72°
50°
3
70°
48°
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 69° to 85°, with overnight lows between 48° and 65°. The average high for September is 75° with an average low of 54°. 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.
