S
M
T
W
T
F
S
26
83°
66°
27
78°
63°
28
78°
59°
29
79°
62°
30
82°
67°
31
84°
66°
1
82°
66°
2
82°
64°
3
85°
59°
4
80°
58°
5
79°
60°
6
80°
59°
7
79°
58°
8
80°
57°
9
79°
56°
10
79°
60°
11
80°
64°
12
84°
65°
13
84°
58°
14
79°
57°
15
79°
59°
16
80°
61°
17
78°
57°
18
78°
57°
19
79°
56°
20
78°
57°
21
80°
60°
22
83°
63°
23
84°
64°
24
85°
63°
25
84°
63°
26
85°
62°
27
84°
61°
28
83°
62°
29
83°
60°
30
81°
54°
31
76°
52°
1
75°
54°
2
75°
54°
3
76°
55°
4
75°
53°
5
74°
53°
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 74° to 85°, with overnight lows between 52° and 67°. The average high for August is 80° with an average low of 60°. 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.
