S
M
T
W
T
F
S
26
86°
69°
27
87°
69°
28
89°
70°
29
89°
69°
30
88°
67°
31
84°
62°
1
82°
67°
2
83°
69°
3
82°
67°
4
84°
68°
5
88°
69°
6
87°
69°
7
87°
67°
8
82°
63°
9
84°
67°
10
84°
63°
11
85°
66°
12
88°
67°
13
89°
68°
14
90°
69°
15
89°
68°
16
90°
68°
17
90°
61°
18
86°
59°
19
82°
59°
20
81°
60°
21
81°
59°
22
82°
60°
23
82°
60°
24
82°
61°
25
85°
60°
26
86°
61°
27
88°
58°
28
82°
58°
29
82°
59°
30
83°
59°
31
85°
61°
1
86°
58°
2
81°
57°
3
80°
64°
4
85°
63°
5
86°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Olney
Olney's August 2026 forecast shows daily high temperatures ranging from 80° to 90°, with overnight lows between 57° and 70°. The average high for August is 85° with an average low of 64°. 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 Olney. See also: September | October | November.
