S
M
T
W
T
F
S
26
92°
74°
27
93°
74°
28
93°
75°
29
94°
75°
30
94°
74°
31
92°
74°
1
92°
73°
2
91°
74°
3
92°
74°
4
92°
73°
5
91°
74°
6
93°
74°
7
87°
65°
8
90°
70°
9
88°
66°
10
86°
65°
11
85°
64°
12
86°
66°
13
87°
70°
14
90°
70°
15
87°
69°
16
86°
69°
17
85°
68°
18
90°
69°
19
85°
67°
20
84°
65°
21
84°
64°
22
85°
63°
23
88°
67°
24
90°
66°
25
91°
65°
26
90°
68°
27
90°
66°
28
89°
65°
29
87°
66°
30
86°
67°
31
85°
62°
1
82°
61°
2
82°
60°
3
81°
59°
4
81°
59°
5
82°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Olmsted
Olmsted's August 2026 forecast shows daily high temperatures ranging from 81° to 94°, with overnight lows between 59° and 75°. The average high for August is 88° with an average low of 68°. 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 Olmsted. See also: September | October | November.