S
M
T
W
T
F
S
30
75°
57°
31
76°
52°
1
74°
48°
2
68°
48°
3
68°
49°
4
70°
52°
5
73°
53°
6
72°
54°
7
73°
55°
8
73°
55°
9
72°
54°
10
72°
55°
11
71°
52°
12
71°
54°
13
70°
54°
14
70°
49°
15
69°
48°
16
63°
48°
17
67°
52°
18
68°
49°
19
64°
51°
20
61°
50°
21
67°
51°
22
67°
51°
23
62°
43°
24
60°
49°
25
60°
47°
26
Hist. Avg.
64°
49°
27
Hist. Avg.
63°
49°
28
Hist. Avg.
63°
48°
29
Hist. Avg.
63°
48°
30
Hist. Avg.
62°
48°
1
Hist. Avg.
62°
47°
2
Hist. Avg.
61°
47°
3
Hist. Avg.
61°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Grunewald
Grunewald's September 2026 forecast shows daily high temperatures ranging from 60° to 76°, with overnight lows between 43° and 57°. The average high for September is 69° 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 Grunewald. See also: October | November | December.
