S
M
T
W
T
F
S
30
75°
57°
31
73°
55°
1
72°
52°
2
75°
48°
3
75°
50°
4
82°
57°
5
72°
56°
6
75°
46°
7
82°
57°
8
87°
60°
9
64°
47°
10
65°
46°
11
66°
48°
12
69°
47°
13
72°
52°
14
69°
50°
15
73°
52°
16
71°
48°
17
67°
49°
18
69°
48°
19
68°
49°
20
61°
47°
21
64°
48°
22
64°
45°
23
66°
48°
24
66°
48°
25
67°
50°
26
66°
48°
27
62°
45°
28
64°
45°
29
64°
43°
30
63°
48°
1
58°
43°
2
58°
42°
3
62°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fellheim
Fellheim's September 2026 forecast shows daily high temperatures ranging from 58° to 87°, with overnight lows between 42° and 60°. The average high for September is 67° with an average low of 48°. 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 Fellheim. See also: October | November | December.