S
M
T
W
T
F
S
30
57°
54°
31
59°
50°
1
61°
46°
2
63°
50°
3
55°
48°
4
63°
46°
5
61°
46°
6
57°
50°
7
65°
45°
8
58°
42°
9
52°
38°
10
59°
41°
11
59°
40°
12
57°
44°
13
57°
40°
14
59°
45°
15
57°
43°
16
56°
41°
17
54°
39°
18
53°
41°
19
56°
40°
20
53°
42°
21
52°
39°
22
51°
43°
23
54°
41°
24
55°
43°
25
57°
39°
26
50°
37°
27
49°
36°
28
49°
36°
29
50°
40°
30
49°
41°
1
51°
40°
2
50°
39°
3
53°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Otta
Otta's September 2026 forecast shows daily high temperatures ranging from 49° to 65°, with overnight lows between 36° and 45°. The average high for September is 54° with an average low of 41°. 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 Otta. See also: October | November | December.
