S
M
T
W
T
F
S
30
86°
67°
31
89°
65°
1
85°
60°
2
87°
64°
3
87°
71°
4
86°
66°
5
86°
65°
6
76°
66°
7
79°
67°
8
80°
60°
9
77°
55°
10
79°
62°
11
82°
56°
12
73°
54°
13
66°
52°
14
68°
49°
15
66°
51°
16
71°
54°
17
70°
53°
18
68°
51°
19
67°
48°
20
70°
49°
21
67°
54°
22
71°
53°
23
72°
54°
24
73°
54°
25
68°
53°
26
69°
53°
27
71°
54°
28
71°
54°
29
68°
52°
30
66°
50°
1
59°
45°
2
57°
41°
3
57°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Orono
Orono's September 2026 forecast shows daily high temperatures ranging from 57° to 82°, with overnight lows between 39° and 67°. The average high for September is 70° 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 Orono. See also: October | November | December.
