S
M
T
W
T
F
S
30
86°
60°
31
87°
59°
1
88°
59°
2
89°
57°
3
92°
58°
4
92°
59°
5
91°
62°
6
91°
61°
7
90°
59°
8
84°
59°
9
87°
58°
10
86°
60°
11
84°
57°
12
81°
54°
13
79°
55°
14
79°
53°
15
81°
46°
16
86°
51°
17
86°
52°
18
82°
51°
19
81°
48°
20
71°
46°
21
73°
43°
22
79°
47°
23
82°
49°
24
82°
49°
25
72°
41°
26
67°
37°
27
70°
40°
28
71°
42°
29
79°
41°
30
76°
42°
1
79°
44°
2
69°
39°
3
72°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Erie
Erie's September 2026 forecast shows daily high temperatures ranging from 67° to 92°, with overnight lows between 37° and 62°. The average high for September is 81° with an average low of 50°. 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 Erie. See also: October | November | December.
