S
M
T
W
T
F
S
26
92°
54°
27
92°
55°
28
87°
54°
29
82°
53°
30
80°
49°
31
82°
53°
1
87°
54°
2
91°
55°
3
89°
44°
4
84°
50°
5
90°
52°
6
93°
51°
7
91°
49°
8
92°
46°
9
84°
46°
10
85°
45°
11
87°
46°
12
86°
45°
13
87°
48°
14
89°
51°
15
91°
50°
16
88°
52°
17
86°
50°
18
90°
42°
19
79°
45°
20
81°
46°
21
81°
46°
22
80°
37°
23
78°
39°
24
79°
41°
25
80°
43°
26
84°
46°
27
86°
47°
28
87°
46°
29
86°
47°
30
85°
47°
31
86°
46°
1
85°
45°
2
79°
47°
3
84°
46°
4
81°
44°
5
81°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in John Day
John Day's August 2026 forecast shows daily high temperatures ranging from 78° to 93°, with overnight lows between 37° and 55°. The average high for August is 85° with an average low of 47°. 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 John Day. See also: September | October | November.
