S
M
T
W
T
F
S
30
73°
61°
31
70°
57°
1
72°
54°
2
72°
54°
3
75°
55°
4
81°
63°
5
70°
57°
6
77°
48°
7
86°
59°
8
81°
61°
9
66°
52°
10
68°
46°
11
70°
46°
12
75°
55°
13
72°
61°
14
70°
61°
15
82°
57°
16
70°
54°
17
68°
46°
18
66°
52°
19
72°
50°
20
64°
50°
21
66°
45°
22
68°
45°
23
72°
45°
24
66°
50°
25
72°
45°
26
77°
51°
27
78°
57°
28
78°
58°
29
82°
57°
30
81°
58°
1
70°
53°
2
67°
49°
3
66°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Herforst
Herforst's September 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 45° and 58°. The average high for September is 75° with an average low of 53°. 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 Herforst. See also: October | November | December.