S
M
T
W
T
F
S
30
88°
69°
31
92°
69°
1
94°
72°
2
96°
71°
3
96°
73°
4
98°
74°
5
96°
67°
6
81°
56°
7
80°
59°
8
86°
69°
9
91°
67°
10
80°
55°
11
80°
58°
12
84°
62°
13
84°
61°
14
80°
56°
15
79°
54°
16
79°
57°
17
78°
55°
18
79°
55°
19
78°
54°
20
79°
59°
21
79°
59°
22
73°
58°
23
74°
58°
24
80°
57°
25
81°
59°
26
81°
59°
27
80°
58°
28
81°
59°
29
81°
59°
30
80°
58°
1
77°
54°
2
74°
47°
3
66°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Catlin
Catlin's September 2026 forecast shows daily high temperatures ranging from 66° to 91°, with overnight lows between 44° and 69°. The average high for September is 79° with an average low of 57°. 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 Catlin. See also: October | November | December.
