S
M
T
W
T
F
S
26
85°
68°
27
86°
69°
28
85°
62°
29
82°
60°
30
85°
60°
31
86°
62°
1
85°
60°
2
86°
60°
3
82°
61°
4
87°
64°
5
87°
64°
6
84°
62°
7
85°
61°
8
85°
65°
9
84°
64°
10
85°
65°
11
81°
64°
12
81°
65°
13
82°
64°
14
79°
62°
15
80°
62°
16
80°
64°
17
79°
64°
18
80°
63°
19
81°
64°
20
82°
63°
21
81°
62°
22
81°
63°
23
86°
64°
24
86°
62°
25
81°
60°
26
85°
65°
27
88°
66°
28
87°
65°
29
86°
64°
30
84°
61°
31
77°
56°
1
76°
53°
2
76°
54°
3
77°
59°
4
84°
62°
5
82°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sidney
Sidney's August 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 53° and 69°. The average high for August is 83° with an average low of 62°. 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 Sidney. See also: September | October | November.
