S
M
T
W
T
F
S
30
82°
59°
31
77°
59°
1
77°
54°
2
81°
54°
3
82°
57°
4
88°
54°
5
79°
63°
6
82°
57°
7
84°
61°
8
90°
61°
9
70°
55°
10
63°
54°
11
72°
50°
12
75°
46°
13
79°
50°
14
77°
59°
15
82°
54°
16
73°
55°
17
68°
52°
18
72°
54°
19
73°
48°
20
79°
52°
21
72°
52°
22
70°
45°
23
72°
41°
24
N/A
25
74°
45°
26
81°
46°
27
81°
49°
28
80°
51°
29
80°
51°
30
80°
55°
1
76°
56°
2
71°
52°
3
73°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Granichen
Granichen's September 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 45° and 56°. The average high for September is 77° 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 Granichen. See also: October | November | December.
