S
M
T
W
T
F
S
30
74°
59°
31
68°
58°
1
79°
65°
2
79°
66°
3
79°
63°
4
76°
57°
5
71°
52°
6
72°
52°
7
74°
54°
8
69°
54°
9
68°
53°
10
72°
56°
11
70°
56°
12
69°
53°
13
67°
54°
14
68°
50°
15
68°
50°
16
71°
54°
17
72°
47°
18
65°
43°
19
65°
45°
20
70°
52°
21
74°
53°
22
75°
54°
23
75°
52°
24
73°
49°
25
72°
50°
26
72°
50°
27
73°
51°
28
72°
50°
29
71°
44°
30
63°
41°
1
61°
41°
2
67°
49°
3
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Etna
Etna's September 2026 forecast shows daily high temperatures ranging from 61° to 79°, with overnight lows between 41° and 66°. The average high for September is 71° 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 Etna. See also: October | November | December.
