S
M
T
W
T
F
S
30
100°
62°
31
99°
60°
1
98°
62°
2
98°
65°
3
97°
66°
4
97°
66°
5
96°
65°
6
92°
63°
7
89°
62°
8
90°
62°
9
90°
60°
10
91°
58°
11
89°
57°
12
89°
57°
13
90°
55°
14
88°
55°
15
88°
56°
16
87°
57°
17
88°
56°
18
89°
55°
19
87°
59°
20
88°
59°
21
91°
60°
22
91°
61°
23
93°
60°
24
Hist. Avg.
89°
63°
25
Hist. Avg.
89°
62°
26
Hist. Avg.
88°
62°
27
Hist. Avg.
88°
62°
28
Hist. Avg.
88°
62°
29
Hist. Avg.
87°
61°
30
Hist. Avg.
87°
61°
1
Hist. Avg.
87°
60°
2
Hist. Avg.
86°
60°
3
Hist. Avg.
86°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Smith Corner
Smith Corner's September 2026 forecast shows daily high temperatures ranging from 87° to 100°, with overnight lows between 55° and 66°. The average high for September is 92° with an average low of 60°. 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 Smith Corner. See also: October | November | December.