S
M
T
W
T
F
S
26
68°
48°
27
74°
52°
28
73°
49°
29
71°
50°
30
74°
53°
31
72°
48°
1
69°
47°
2
72°
51°
3
74°
53°
4
74°
53°
5
74°
52°
6
74°
53°
7
73°
53°
8
75°
54°
9
75°
54°
10
64°
45°
11
63°
44°
12
64°
44°
13
66°
46°
14
67°
47°
15
66°
46°
16
68°
54°
17
74°
54°
18
74°
53°
19
75°
53°
20
76°
52°
21
75°
48°
22
74°
45°
23
69°
50°
24
71°
52°
25
73°
47°
26
74°
48°
27
74°
50°
28
73°
44°
29
70°
46°
30
65°
49°
31
73°
44°
1
64°
44°
2
66°
45°
3
63°
51°
4
65°
50°
5
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Snoqualmie Pass
Snoqualmie Pass's August 2026 forecast shows daily high temperatures ranging from 63° to 76°, with overnight lows between 44° and 54°. The average high for August is 71° with an average low of 49°. 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 Snoqualmie Pass. See also: September | October | November.