S
M
T
W
T
F
S
26
101°
79°
27
101°
78°
28
103°
79°
29
92°
69°
30
90°
70°
31
91°
72°
1
87°
66°
2
87°
66°
3
86°
65°
4
89°
66°
5
93°
68°
6
95°
69°
7
95°
67°
8
94°
68°
9
95°
68°
10
94°
70°
11
90°
66°
12
92°
70°
13
91°
69°
14
89°
66°
15
85°
63°
16
85°
63°
17
86°
64°
18
91°
68°
19
91°
64°
20
85°
63°
21
86°
67°
22
88°
68°
23
88°
67°
24
89°
67°
25
85°
65°
26
85°
61°
27
84°
62°
28
83°
64°
29
80°
65°
30
81°
67°
31
84°
67°
1
85°
66°
2
85°
64°
3
83°
63°
4
84°
61°
5
83°
60°
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 80° to 95°, with overnight lows between 60° and 72°. The average high for August is 88° with an average low of 66°. 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.
