S
M
T
W
T
F
S
30
72°
63°
31
68°
61°
1
71°
57°
2
71°
55°
3
72°
62°
4
74°
62°
5
69°
49°
6
73°
59°
7
83°
61°
8
67°
53°
9
65°
52°
10
65°
52°
11
65°
54°
12
63°
52°
13
64°
53°
14
65°
54°
15
66°
54°
16
65°
54°
17
66°
52°
18
65°
49°
19
63°
52°
20
65°
54°
21
65°
55°
22
67°
55°
23
67°
54°
24
68°
55°
25
68°
52°
26
63°
47°
27
62°
47°
28
63°
48°
29
64°
47°
30
60°
53°
1
63°
49°
2
59°
48°
3
64°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Herne
Herne's September 2026 forecast shows daily high temperatures ranging from 59° to 83°, with overnight lows between 47° and 61°. The average high for September is 66° with an average low of 52°. 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 Herne. See also: October | November | December.
