S
M
T
W
T
F
S
30
73°
53°
31
72°
54°
1
71°
56°
2
69°
55°
3
72°
54°
4
72°
51°
5
69°
53°
6
71°
50°
7
71°
52°
8
68°
55°
9
67°
51°
10
70°
52°
11
70°
49°
12
69°
55°
13
70°
49°
14
67°
47°
15
66°
51°
16
67°
46°
17
63°
47°
18
62°
52°
19
63°
44°
20
63°
50°
21
63°
53°
22
Hist. Avg.
64°
50°
23
Hist. Avg.
64°
49°
24
Hist. Avg.
63°
49°
25
Hist. Avg.
63°
49°
26
Hist. Avg.
63°
49°
27
Hist. Avg.
63°
49°
28
Hist. Avg.
62°
49°
29
Hist. Avg.
62°
48°
30
Hist. Avg.
62°
48°
1
Hist. Avg.
61°
48°
2
Hist. Avg.
61°
48°
3
Hist. Avg.
61°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Greffen
Greffen's September 2026 forecast shows daily high temperatures ranging from 62° to 73°, with overnight lows between 44° and 56°. The average high for September is 68° 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 Greffen. See also: October | November | December.
