S
M
T
W
T
F
S
30
64°
57°
31
66°
57°
1
72°
50°
2
70°
48°
3
73°
61°
4
70°
59°
5
66°
52°
6
70°
45°
7
82°
52°
8
72°
54°
9
63°
48°
10
65°
51°
11
67°
51°
12
69°
53°
13
66°
53°
14
70°
52°
15
73°
53°
16
66°
51°
17
65°
51°
18
67°
52°
19
68°
51°
20
67°
50°
21
65°
53°
22
66°
53°
23
66°
52°
24
67°
53°
25
66°
51°
26
63°
50°
27
61°
48°
28
60°
46°
29
61°
45°
30
60°
51°
1
61°
50°
2
61°
47°
3
62°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lathen
Lathen's September 2026 forecast shows daily high temperatures ranging from 60° to 73°, with overnight lows between 45° and 54°. The average high for September is 65° 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 Lathen. See also: October | November | December.
