S
M
T
W
T
F
S
30
71°
64°
31
82°
61°
1
77°
52°
2
81°
51°
3
80°
61°
4
79°
57°
5
78°
60°
6
82°
64°
7
79°
64°
8
81°
60°
9
71°
50°
10
82°
49°
11
77°
57°
12
64°
47°
13
64°
38°
14
59°
45°
15
65°
43°
16
70°
39°
17
65°
43°
18
69°
54°
19
71°
53°
20
66°
46°
21
63°
40°
22
66°
44°
23
69°
47°
24
62°
55°
25
67°
59°
26
62°
55°
27
71°
53°
28
65°
53°
29
59°
47°
30
65°
46°
1
65°
46°
2
64°
46°
3
57°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fosston
Fosston's September 2026 forecast shows daily high temperatures ranging from 57° to 71°, with overnight lows between 39° and 59°. The average high for September is 64° 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 Fosston. See also: October | November | December.
