S
M
T
W
T
F
S
26
69°
55°
27
71°
56°
28
69°
52°
29
69°
52°
30
77°
59°
31
78°
56°
1
76°
55°
2
72°
54°
3
70°
52°
4
71°
53°
5
73°
55°
6
78°
60°
7
79°
60°
8
78°
57°
9
74°
58°
10
77°
56°
11
70°
55°
12
70°
59°
13
77°
58°
14
76°
53°
15
75°
56°
16
74°
52°
17
77°
60°
18
77°
60°
19
76°
59°
20
77°
51°
21
74°
50°
22
69°
52°
23
70°
52°
24
69°
54°
25
69°
53°
26
68°
50°
27
68°
50°
28
69°
53°
29
68°
52°
30
73°
54°
31
67°
49°
1
68°
48°
2
67°
47°
3
67°
49°
4
68°
47°
5
65°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Gornau
Gornau's August 2026 forecast shows daily high temperatures ranging from 65° to 79°, with overnight lows between 47° and 60°. The average high for August is 72° with an average low of 54°. 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 Gornau. See also: September | October | November.
