S
M
T
W
T
F
S
30
72°
63°
31
83°
64°
1
92°
58°
2
80°
51°
3
77°
59°
4
77°
59°
5
79°
59°
6
77°
55°
7
73°
52°
8
70°
56°
9
76°
53°
10
69°
52°
11
66°
44°
12
65°
44°
13
64°
45°
14
68°
43°
15
72°
50°
16
72°
49°
17
69°
48°
18
70°
50°
19
71°
49°
20
71°
48°
21
70°
49°
22
70°
49°
23
71°
48°
24
70°
49°
25
70°
48°
26
69°
47°
27
70°
48°
28
70°
46°
29
67°
45°
30
66°
45°
1
68°
46°
2
67°
45°
3
66°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Crystal Falls
Crystal Falls's September 2026 forecast shows daily high temperatures ranging from 64° to 92°, with overnight lows between 43° and 59°. The average high for September is 71° 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 Crystal Falls. See also: October | November | December.
