S
M
T
W
T
F
S
30
85°
51°
31
85°
49°
1
86°
49°
2
84°
48°
3
83°
47°
4
82°
46°
5
82°
45°
6
81°
48°
7
81°
48°
8
83°
47°
9
83°
47°
10
82°
46°
11
81°
47°
12
81°
52°
13
84°
54°
14
87°
53°
15
88°
52°
16
87°
51°
17
86°
53°
18
86°
53°
19
87°
51°
20
88°
52°
21
85°
49°
22
83°
48°
23
83°
49°
24
82°
48°
25
84°
50°
26
83°
45°
27
76°
48°
28
76°
49°
29
Hist. Avg.
86°
57°
30
Hist. Avg.
86°
57°
1
Hist. Avg.
85°
56°
2
Hist. Avg.
85°
56°
3
Hist. Avg.
84°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Crystal Falls
Crystal Falls's September 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 45° and 54°. The average high for September is 83° 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.
