S
M
T
W
T
F
S
30
69°
61°
31
74°
63°
1
83°
65°
2
82°
63°
3
76°
54°
4
76°
54°
5
75°
54°
6
72°
53°
7
73°
50°
8
68°
51°
9
69°
52°
10
73°
52°
11
68°
49°
12
67°
50°
13
66°
48°
14
68°
47°
15
69°
52°
16
72°
51°
17
72°
48°
18
65°
46°
19
68°
50°
20
72°
52°
21
71°
52°
22
72°
51°
23
72°
50°
24
70°
49°
25
70°
49°
26
69°
50°
27
70°
49°
28
70°
48°
29
68°
46°
30
63°
45°
1
63°
47°
2
67°
48°
3
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Elmira
Elmira's September 2026 forecast shows daily high temperatures ranging from 63° to 83°, with overnight lows between 45° and 65°. The average high for September is 71° with an average low of 51°. 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 Elmira. See also: October | November | December.
