S
M
T
W
T
F
S
30
76°
48°
31
74°
47°
1
73°
49°
2
74°
49°
3
72°
50°
4
72°
48°
5
75°
49°
6
74°
48°
7
72°
46°
8
73°
45°
9
71°
49°
10
72°
47°
11
70°
45°
12
70°
44°
13
72°
45°
14
74°
50°
15
72°
50°
16
76°
51°
17
76°
46°
18
71°
43°
19
74°
49°
20
74°
43°
21
67°
42°
22
69°
47°
23
70°
47°
24
71°
48°
25
72°
45°
26
71°
39°
27
70°
41°
28
63°
40°
29
62°
40°
30
63°
38°
1
64°
38°
2
61°
36°
3
Hist. Avg.
68°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chemung
Chemung's September 2026 forecast shows daily high temperatures ranging from 61° to 76°, with overnight lows between 36° and 51°. The average high for September is 71° with an average low of 45°. 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 Chemung. See also: October | November | December.
