S
M
T
W
T
F
S
26
86°
68°
27
84°
64°
28
91°
54°
29
100°
61°
30
104°
64°
31
N/A
1
83°
63°
2
92°
67°
3
97°
69°
4
93°
68°
5
93°
67°
6
94°
67°
7
92°
67°
8
81°
62°
9
83°
62°
10
82°
62°
11
83°
64°
12
84°
62°
13
79°
53°
14
80°
54°
15
80°
56°
16
79°
56°
17
80°
58°
18
80°
58°
19
78°
57°
20
78°
55°
21
77°
57°
22
77°
53°
23
70°
50°
24
75°
53°
25
76°
53°
26
77°
55°
27
78°
57°
28
78°
56°
29
75°
55°
30
73°
52°
31
69°
49°
1
73°
48°
2
67°
48°
3
68°
51°
4
72°
49°
5
68°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Grenzach-Wyhlen
Grenzach-Wyhlen's August 2026 forecast shows daily high temperatures ranging from 67° to 97°, with overnight lows between 48° and 69°. The average high for August is 80° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Grenzach-Wyhlen. See also: September | October | November.
