S
M
T
W
T
F
S
26
91°
58°
27
94°
59°
28
95°
60°
29
95°
61°
30
96°
62°
31
97°
62°
1
96°
61°
2
97°
62°
3
97°
62°
4
96°
61°
5
96°
61°
6
95°
60°
7
96°
61°
8
96°
61°
9
95°
60°
10
96°
61°
11
96°
61°
12
95°
60°
13
95°
59°
14
94°
61°
15
96°
60°
16
94°
59°
17
95°
58°
18
93°
57°
19
94°
56°
20
93°
56°
21
95°
60°
22
96°
60°
23
97°
59°
24
97°
60°
25
98°
61°
26
97°
60°
27
96°
59°
28
96°
59°
29
95°
56°
30
93°
56°
31
90°
58°
1
94°
58°
2
95°
57°
3
94°
55°
4
91°
52°
5
89°
52°
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 89° to 98°, with overnight lows between 52° and 62°. The average high for August is 95° with an average low of 59°. 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.