S
M
T
W
T
F
S
26
93°
62°
27
86°
62°
28
88°
63°
29
93°
63°
30
93°
62°
31
86°
59°
1
86°
63°
2
93°
63°
3
88°
61°
4
94°
61°
5
95°
60°
6
93°
62°
7
95°
61°
8
94°
59°
9
89°
61°
10
93°
56°
11
87°
52°
12
83°
52°
13
83°
51°
14
84°
55°
15
84°
50°
16
85°
49°
17
83°
52°
18
83°
52°
19
84°
58°
20
88°
59°
21
91°
58°
22
91°
57°
23
90°
55°
24
90°
54°
25
83°
49°
26
81°
48°
27
82°
49°
28
83°
50°
29
87°
52°
30
80°
54°
31
81°
55°
1
83°
55°
2
88°
54°
3
87°
47°
4
80°
45°
5
77°
47°
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 77° to 95°, with overnight lows between 45° and 63°. The average high for August is 87° with an average low of 56°. 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.
