S
M
T
W
T
F
S
30
82°
57°
31
78°
56°
1
71°
51°
2
69°
53°
3
80°
55°
4
81°
56°
5
82°
56°
6
80°
55°
7
78°
56°
8
78°
54°
9
77°
54°
10
77°
53°
11
78°
45°
12
72°
48°
13
76°
50°
14
77°
46°
15
75°
38°
16
65°
39°
17
65°
40°
18
71°
45°
19
69°
50°
20
74°
51°
21
77°
50°
22
76°
52°
23
74°
51°
24
76°
48°
25
73°
39°
26
71°
38°
27
59°
46°
28
65°
44°
29
69°
47°
30
70°
37°
1
67°
27°
2
54°
35°
3
55°
41°
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 54° to 82°, with overnight lows between 27° and 57°. The average high for September is 73° with an average low of 48°. 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.
