S
M
T
W
T
F
S
30
81°
56°
31
77°
49°
1
80°
47°
2
78°
47°
3
65°
59°
4
80°
60°
5
72°
53°
6
67°
46°
7
78°
54°
8
74°
43°
9
67°
59°
10
79°
53°
11
69°
45°
12
68°
51°
13
73°
54°
14
71°
55°
15
69°
50°
16
69°
45°
17
67°
47°
18
63°
50°
19
68°
47°
20
72°
51°
21
61°
50°
22
61°
51°
23
65°
50°
24
70°
50°
25
67°
49°
26
66°
46°
27
60°
43°
28
64°
45°
29
68°
48°
30
69°
49°
1
68°
49°
2
66°
48°
3
64°
48°
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 60° to 79°, with overnight lows between 43° and 59°. The average high for September is 68° with an average low of 49°. 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.
