S
M
T
W
T
F
S
30
59°
47°
31
59°
43°
1
56°
42°
2
53°
41°
3
56°
45°
4
58°
44°
5
58°
44°
6
57°
40°
7
53°
36°
8
55°
40°
9
56°
45°
10
56°
44°
11
55°
40°
12
56°
40°
13
54°
34°
14
51°
37°
15
47°
35°
16
46°
31°
17
46°
38°
18
45°
39°
19
45°
34°
20
49°
37°
21
44°
38°
22
45°
39°
23
43°
37°
24
49°
36°
25
48°
33°
26
49°
35°
27
48°
38°
28
50°
37°
29
Hist. Avg.
42°
32°
30
Hist. Avg.
42°
32°
1
Hist. Avg.
41°
31°
2
Hist. Avg.
41°
31°
3
Hist. Avg.
41°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Muonio
Muonio's September 2026 forecast shows daily high temperatures ranging from 43° to 59°, with overnight lows between 31° and 47°. The average high for September is 52° with an average low of 39°. 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 Muonio. See also: October | November | December.
