S
M
T
W
T
F
S
26
84°
53°
27
86°
52°
28
89°
54°
29
89°
52°
30
90°
53°
31
90°
54°
1
89°
53°
2
89°
54°
3
88°
53°
4
84°
50°
5
82°
52°
6
81°
51°
7
86°
53°
8
88°
52°
9
87°
52°
10
88°
51°
11
85°
51°
12
83°
50°
13
84°
48°
14
86°
48°
15
86°
48°
16
89°
48°
17
88°
49°
18
89°
47°
19
88°
48°
20
85°
52°
21
84°
51°
22
90°
41°
23
88°
42°
24
81°
42°
25
84°
41°
26
82°
41°
27
83°
39°
28
82°
40°
29
79°
39°
30
77°
38°
31
78°
40°
1
79°
42°
2
85°
47°
3
84°
45°
4
75°
43°
5
76°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Klamath Falls
Klamath Falls's August 2026 forecast shows daily high temperatures ranging from 75° to 90°, with overnight lows between 38° and 54°. The average high for August is 85° with an average low of 48°. 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 Klamath Falls. See also: September | October | November.