S
M
T
W
T
F
S
26
67°
53°
27
68°
55°
28
69°
55°
29
66°
51°
30
65°
54°
31
62°
49°
1
62°
49°
2
69°
53°
3
69°
53°
4
64°
52°
5
63°
50°
6
62°
49°
7
68°
52°
8
69°
50°
9
69°
55°
10
68°
53°
11
62°
53°
12
62°
51°
13
64°
53°
14
62°
53°
15
62°
52°
16
63°
51°
17
62°
51°
18
62°
50°
19
64°
52°
20
66°
51°
21
66°
54°
22
70°
54°
23
71°
50°
24
68°
53°
25
70°
54°
26
63°
49°
27
63°
52°
28
69°
52°
29
71°
54°
30
63°
47°
31
63°
54°
1
67°
47°
2
63°
48°
3
65°
46°
4
69°
52°
5
63°
46°
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 62° to 71°, with overnight lows between 46° and 55°. The average high for August is 66° with an average low of 51°. 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.
