S
M
T
W
T
F
S
30
76°
60°
31
77°
59°
1
71°
64°
2
70°
64°
3
83°
64°
4
83°
60°
5
76°
59°
6
73°
50°
7
78°
55°
8
80°
60°
9
80°
68°
10
84°
56°
11
74°
53°
12
76°
61°
13
81°
63°
14
79°
62°
15
77°
60°
16
72°
57°
17
71°
58°
18
73°
59°
19
72°
53°
20
77°
56°
21
75°
57°
22
68°
57°
23
68°
56°
24
69°
56°
25
71°
55°
26
74°
52°
27
69°
49°
28
70°
53°
29
74°
55°
30
75°
55°
1
74°
54°
2
73°
54°
3
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Catskill
Catskill's September 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 49° and 68°. The average high for September is 74° with an average low of 56°. 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 Catskill. See also: October | November | December.
