S
M
T
W
T
F
S
26
72°
41°
27
73°
42°
28
71°
41°
29
66°
42°
30
65°
38°
31
67°
42°
1
68°
44°
2
73°
46°
3
73°
46°
4
72°
45°
5
73°
46°
6
74°
47°
7
74°
47°
8
73°
46°
9
73°
46°
10
72°
45°
11
65°
45°
12
66°
42°
13
65°
43°
14
70°
45°
15
65°
44°
16
63°
44°
17
63°
41°
18
65°
42°
19
68°
44°
20
71°
44°
21
71°
43°
22
70°
43°
23
67°
41°
24
69°
44°
25
69°
43°
26
64°
42°
27
62°
39°
28
70°
39°
29
71°
39°
30
70°
35°
31
63°
32°
1
61°
34°
2
62°
37°
3
66°
35°
4
70°
34°
5
67°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Crater Lake
Crater Lake's August 2026 forecast shows daily high temperatures ranging from 61° to 74°, with overnight lows between 32° and 47°. The average high for August is 68° with an average low of 42°. 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 Crater Lake. See also: September | October | November.
