S
M
T
W
T
F
S
26
74°
57°
27
73°
56°
28
67°
56°
29
66°
55°
30
66°
56°
31
67°
56°
1
71°
55°
2
73°
55°
3
67°
48°
4
66°
48°
5
69°
49°
6
73°
50°
7
69°
49°
8
67°
50°
9
67°
56°
10
74°
57°
11
75°
57°
12
76°
56°
13
76°
57°
14
75°
57°
15
76°
54°
16
75°
49°
17
74°
51°
18
71°
55°
19
67°
52°
20
65°
55°
21
65°
47°
22
66°
46°
23
66°
48°
24
68°
52°
25
70°
54°
26
73°
55°
27
73°
56°
28
74°
55°
29
74°
57°
30
73°
56°
31
73°
54°
1
72°
54°
2
72°
51°
3
70°
50°
4
66°
54°
5
64°
46°
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 64° to 76°, with overnight lows between 46° and 57°. The average high for August is 70° with an average low of 53°. 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.
