S
M
T
W
T
F
S
26
98°
64°
27
97°
63°
28
97°
63°
29
96°
62°
30
98°
63°
31
97°
63°
1
96°
61°
2
97°
62°
3
97°
62°
4
96°
61°
5
96°
62°
6
95°
62°
7
96°
61°
8
96°
62°
9
95°
62°
10
96°
61°
11
95°
58°
12
91°
56°
13
89°
55°
14
90°
56°
15
93°
59°
16
94°
60°
17
93°
55°
18
91°
53°
19
91°
57°
20
92°
59°
21
92°
57°
22
93°
58°
23
92°
55°
24
91°
54°
25
91°
54°
26
92°
53°
27
90°
53°
28
90°
54°
29
91°
53°
30
90°
53°
31
90°
52°
1
91°
52°
2
89°
53°
3
88°
52°
4
88°
52°
5
89°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mettler
Mettler's August 2026 forecast shows daily high temperatures ranging from 88° to 98°, with overnight lows between 52° and 64°. The average high for August is 93° with an average low of 58°. 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 Mettler. See also: September | October | November.