S
M
T
W
T
F
S
30
75°
50°
31
78°
48°
1
78°
47°
2
72°
60°
3
67°
60°
4
80°
61°
5
72°
53°
6
72°
50°
7
80°
47°
8
N/A
9
68°
63°
10
82°
51°
11
72°
43°
12
72°
52°
13
76°
55°
14
77°
51°
15
72°
57°
16
74°
51°
17
69°
50°
18
66°
47°
19
64°
43°
20
66°
42°
21
65°
36°
22
61°
50°
23
63°
51°
24
67°
50°
25
64°
50°
26
65°
48°
27
61°
45°
28
61°
45°
29
67°
49°
30
67°
49°
1
66°
48°
2
65°
49°
3
63°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Mechanic Falls
Mechanic Falls's September 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 36° and 63°. 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 Mechanic Falls. See also: October | November | December.
