S
M
T
W
T
F
S
26
82°
53°
27
84°
60°
28
90°
61°
29
91°
62°
30
92°
62°
31
88°
61°
1
90°
60°
2
83°
59°
3
90°
60°
4
90°
60°
5
86°
59°
6
82°
60°
7
88°
59°
8
89°
60°
9
90°
60°
10
87°
50°
11
83°
50°
12
78°
51°
13
80°
55°
14
85°
51°
15
84°
50°
16
79°
47°
17
78°
46°
18
76°
47°
19
79°
50°
20
83°
55°
21
88°
57°
22
89°
56°
23
89°
44°
24
81°
42°
25
73°
43°
26
75°
47°
27
82°
55°
28
86°
53°
29
86°
53°
30
85°
43°
31
75°
47°
1
75°
51°
2
78°
50°
3
82°
45°
4
74°
46°
5
75°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Chinook
Chinook's August 2026 forecast shows daily high temperatures ranging from 73° to 92°, with overnight lows between 42° and 62°. The average high for August is 83° 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 Chinook. See also: September | October | November.
