S
M
T
W
T
F
S
30
70°
59°
31
64°
57°
1
68°
55°
2
64°
59°
3
68°
60°
4
66°
58°
5
64°
53°
6
73°
59°
7
65°
54°
8
60°
52°
9
62°
51°
10
64°
57°
11
62°
53°
12
62°
51°
13
63°
53°
14
64°
53°
15
62°
53°
16
62°
54°
17
63°
52°
18
62°
50°
19
61°
53°
20
63°
54°
21
64°
54°
22
64°
53°
23
63°
54°
24
64°
52°
25
61°
48°
26
60°
47°
27
61°
47°
28
62°
48°
29
61°
51°
30
61°
49°
1
59°
51°
2
62°
50°
3
62°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Catterall
Catterall's September 2026 forecast shows daily high temperatures ranging from 59° to 73°, with overnight lows between 47° and 59°. The average high for September is 63° with an average low of 52°. 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 Catterall. See also: October | November | December.
