S
M
T
W
T
F
S
30
68°
46°
31
67°
45°
1
68°
46°
2
68°
48°
3
69°
47°
4
66°
48°
5
67°
47°
6
66°
49°
7
64°
45°
8
65°
44°
9
65°
45°
10
66°
47°
11
63°
44°
12
67°
42°
13
66°
45°
14
70°
50°
15
68°
50°
16
68°
49°
17
69°
47°
18
70°
43°
19
71°
48°
20
71°
46°
21
70°
44°
22
67°
45°
23
62°
40°
24
61°
39°
25
60°
43°
26
64°
38°
27
64°
38°
28
57°
39°
29
56°
38°
30
55°
36°
1
Hist. Avg.
64°
42°
2
Hist. Avg.
64°
42°
3
Hist. Avg.
63°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in St. Regis Falls
St. Regis Falls's September 2026 forecast shows daily high temperatures ranging from 55° to 71°, with overnight lows between 36° and 50°. The average high for September is 66° with an average low of 44°. 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 St. Regis Falls. See also: October | November | December.
