S
M
T
W
T
F
S
26
82°
59°
27
80°
58°
28
76°
56°
29
71°
55°
30
72°
55°
31
75°
56°
1
80°
57°
2
81°
58°
3
74°
50°
4
73°
50°
5
78°
52°
6
80°
55°
7
73°
54°
8
74°
50°
9
73°
59°
10
81°
61°
11
82°
60°
12
83°
61°
13
83°
60°
14
82°
60°
15
83°
57°
16
82°
51°
17
81°
54°
18
76°
56°
19
72°
51°
20
71°
54°
21
71°
47°
22
72°
46°
23
71°
49°
24
74°
51°
25
78°
55°
26
79°
56°
27
80°
56°
28
81°
58°
29
80°
58°
30
79°
57°
31
79°
56°
1
78°
54°
2
77°
52°
3
75°
52°
4
74°
51°
5
71°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Snoqualmie
Snoqualmie's August 2026 forecast shows daily high temperatures ranging from 71° to 83°, with overnight lows between 45° and 61°. The average high for August is 77° with an average low of 55°. 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. See also: September | October | November.