S
M
T
W
T
F
S
30
82°
61°
31
81°
66°
1
87°
68°
2
86°
67°
3
84°
66°
4
80°
58°
5
79°
54°
6
75°
55°
7
75°
51°
8
71°
51°
9
72°
52°
10
77°
53°
11
75°
52°
12
73°
50°
13
72°
48°
14
71°
49°
15
74°
53°
16
71°
52°
17
73°
47°
18
68°
43°
19
70°
47°
20
75°
52°
21
76°
52°
22
76°
51°
23
75°
52°
24
76°
50°
25
74°
49°
26
73°
49°
27
74°
50°
28
74°
50°
29
73°
47°
30
69°
43°
1
68°
44°
2
71°
47°
3
72°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Smithport
Smithport's September 2026 forecast shows daily high temperatures ranging from 68° to 87°, with overnight lows between 43° and 68°. The average high for September is 75° 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 Smithport. See also: October | November | December.
