S
M
T
W
T
F
S
30
81°
59°
31
82°
58°
1
87°
62°
2
88°
64°
3
87°
63°
4
85°
62°
5
87°
56°
6
84°
57°
7
84°
62°
8
88°
63°
9
88°
62°
10
87°
63°
11
88°
63°
12
87°
62°
13
85°
61°
14
86°
61°
15
87°
62°
16
86°
62°
17
78°
60°
18
80°
57°
19
77°
53°
20
76°
55°
21
75°
53°
22
76°
50°
23
75°
51°
24
74°
57°
25
79°
56°
26
82°
57°
27
73°
58°
28
77°
57°
29
76°
56°
30
73°
47°
1
72°
45°
2
70°
43°
3
68°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mount Erie
Mount Erie's September 2026 forecast shows daily high temperatures ranging from 68° to 88°, with overnight lows between 43° and 64°. The average high for September is 81° with an average low of 57°. 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 Mount Erie. See also: October | November | December.