S
M
T
W
T
F
S
26
85°
42°
27
86°
44°
28
87°
46°
29
89°
46°
30
89°
46°
31
92°
46°
1
87°
50°
2
84°
41°
3
85°
51°
4
93°
46°
5
96°
49°
6
95°
50°
7
97°
50°
8
95°
49°
9
92°
49°
10
88°
46°
11
89°
45°
12
89°
45°
13
84°
48°
14
83°
51°
15
81°
46°
16
83°
45°
17
87°
53°
18
88°
47°
19
91°
47°
20
90°
49°
21
84°
52°
22
83°
44°
23
83°
39°
24
89°
46°
25
88°
44°
26
85°
42°
27
84°
42°
28
85°
42°
29
84°
41°
30
81°
46°
31
80°
45°
1
78°
44°
2
82°
44°
3
81°
45°
4
82°
46°
5
83°
45°
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 78° to 89°, with overnight lows between 41° and 46°. The average high for August is 83° with an average low of 44°. 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.