S
M
T
W
T
F
S
30
89°
60°
31
88°
61°
1
92°
60°
2
91°
52°
3
90°
50°
4
92°
55°
5
93°
58°
6
88°
55°
7
85°
48°
8
83°
47°
9
83°
51°
10
88°
52°
11
91°
53°
12
91°
52°
13
90°
53°
14
92°
57°
15
91°
51°
16
88°
50°
17
89°
53°
18
90°
52°
19
90°
52°
20
89°
55°
21
88°
56°
22
84°
54°
23
80°
50°
24
76°
51°
25
79°
51°
26
81°
49°
27
78°
51°
28
79°
53°
29
77°
52°
30
75°
46°
1
75°
45°
2
76°
41°
3
74°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fredonia
Fredonia's September 2026 forecast shows daily high temperatures ranging from 74° to 93°, with overnight lows between 41° and 61°. The average high for September is 85° 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 Fredonia. See also: October | November | December.