S
M
T
W
T
F
S
30
77°
64°
31
75°
65°
1
77°
64°
2
77°
63°
3
76°
61°
4
72°
60°
5
71°
58°
6
75°
61°
7
73°
60°
8
73°
62°
9
74°
63°
10
73°
54°
11
71°
58°
12
73°
58°
13
73°
59°
14
72°
59°
15
74°
58°
16
73°
57°
17
68°
57°
18
73°
58°
19
69°
58°
20
71°
57°
21
71°
58°
22
72°
58°
23
72°
55°
24
65°
54°
25
61°
52°
26
63°
53°
27
66°
53°
28
68°
54°
29
69°
54°
30
69°
53°
1
68°
54°
2
68°
54°
3
67°
53°
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 61° to 77°, with overnight lows between 52° and 65°. The average high for September is 71° with an average low of 58°. 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.
