S
M
T
W
T
F
S
26
68°
53°
27
67°
52°
28
69°
49°
29
68°
49°
30
69°
50°
31
75°
59°
1
76°
58°
2
75°
50°
3
69°
52°
4
72°
58°
5
74°
59°
6
75°
55°
7
71°
54°
8
67°
54°
9
67°
53°
10
68°
50°
11
71°
54°
12
73°
50°
13
68°
49°
14
67°
50°
15
68°
51°
16
70°
49°
17
66°
47°
18
66°
47°
19
67°
51°
20
66°
52°
21
65°
48°
22
66°
50°
23
65°
52°
24
65°
52°
25
66°
53°
26
67°
51°
27
67°
50°
28
68°
53°
29
69°
50°
30
63°
46°
31
63°
47°
1
64°
46°
2
62°
43°
3
62°
43°
4
63°
47°
5
63°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Tettau
Tettau's August 2026 forecast shows daily high temperatures ranging from 62° to 76°, with overnight lows between 43° and 59°. The average high for August 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 August weather will actually feel in Tettau. See also: September | October | November.