S
M
T
W
T
F
S
30
86°
59°
31
91°
59°
1
82°
64°
2
81°
57°
3
82°
52°
4
80°
51°
5
89°
54°
6
74°
43°
7
76°
43°
8
80°
47°
9
84°
51°
10
83°
54°
11
73°
50°
12
71°
50°
13
70°
49°
14
72°
50°
15
74°
50°
16
71°
49°
17
74°
50°
18
70°
50°
19
71°
49°
20
72°
50°
21
72°
50°
22
71°
49°
23
70°
49°
24
68°
48°
25
70°
48°
26
70°
46°
27
69°
48°
28
70°
47°
29
69°
46°
30
68°
47°
1
69°
48°
2
69°
47°
3
67°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fiser
Fiser's September 2026 forecast shows daily high temperatures ranging from 67° to 89°, with overnight lows between 42° and 54°. The average high for September is 73° with an average low of 49°. 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 Fiser. See also: October | November | December.