S
M
T
W
T
F
S
30
81°
56°
31
80°
50°
1
77°
52°
2
77°
55°
3
79°
55°
4
79°
54°
5
80°
55°
6
79°
46°
7
79°
44°
8
69°
44°
9
67°
52°
10
69°
49°
11
68°
52°
12
73°
52°
13
73°
53°
14
76°
54°
15
76°
48°
16
66°
48°
17
65°
41°
18
Hist. Avg.
70°
45°
19
Hist. Avg.
69°
45°
20
Hist. Avg.
69°
44°
21
Hist. Avg.
68°
44°
22
Hist. Avg.
68°
43°
23
Hist. Avg.
67°
43°
24
Hist. Avg.
67°
43°
25
Hist. Avg.
66°
42°
26
Hist. Avg.
66°
42°
27
Hist. Avg.
65°
41°
28
Hist. Avg.
65°
41°
29
Hist. Avg.
64°
41°
30
Hist. Avg.
64°
40°
1
Hist. Avg.
63°
40°
2
Hist. Avg.
62°
39°
3
Hist. Avg.
62°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Crookston
Crookston's September 2026 forecast shows daily high temperatures ranging from 65° to 81°, with overnight lows between 41° and 56°. The average high for September is 74° with an average low of 51°. 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 Crookston. See also: October | November | December.
