S
M
T
W
T
F
S
26
96°
76°
27
98°
77°
28
88°
76°
29
86°
75°
30
82°
73°
31
88°
69°
1
83°
66°
2
86°
66°
3
86°
67°
4
88°
67°
5
81°
70°
6
82°
70°
7
85°
69°
8
88°
67°
9
93°
76°
10
93°
74°
11
95°
76°
12
94°
77°
13
96°
78°
14
95°
77°
15
95°
76°
16
88°
69°
17
83°
67°
18
91°
76°
19
94°
70°
20
84°
67°
21
90°
72°
22
96°
74°
23
95°
72°
24
94°
69°
25
94°
69°
26
92°
67°
27
93°
75°
28
85°
65°
29
88°
69°
30
89°
70°
31
90°
70°
1
90°
71°
2
89°
71°
3
90°
70°
4
89°
70°
5
88°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Olathe
Olathe's August 2026 forecast shows daily high temperatures ranging from 83° to 96°, with overnight lows between 65° and 77°. The average high for August is 91° with an average low of 71°. 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 Olathe. See also: September | October | November.