S
M
T
W
T
F
S
26
79°
50°
27
80°
51°
28
80°
52°
29
78°
58°
30
80°
48°
31
72°
49°
1
72°
48°
2
73°
51°
3
73°
50°
4
71°
49°
5
72°
54°
6
78°
57°
7
80°
54°
8
78°
49°
9
79°
51°
10
78°
52°
11
71°
54°
12
69°
48°
13
71°
57°
14
71°
52°
15
70°
54°
16
71°
52°
17
70°
54°
18
71°
50°
19
72°
57°
20
71°
50°
21
69°
48°
22
70°
48°
23
Hist. Avg.
74°
52°
24
Hist. Avg.
74°
52°
25
Hist. Avg.
74°
52°
26
Hist. Avg.
74°
52°
27
Hist. Avg.
74°
52°
28
Hist. Avg.
73°
52°
29
Hist. Avg.
73°
51°
30
Hist. Avg.
73°
51°
31
Hist. Avg.
73°
51°
1
Hist. Avg.
72°
51°
2
Hist. Avg.
72°
51°
3
Hist. Avg.
72°
51°
4
Hist. Avg.
72°
50°
5
Hist. Avg.
72°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Sedro-Woolley
Sedro-Woolley's August 2026 forecast shows daily high temperatures ranging from 69° to 80°, with overnight lows between 48° and 58°. The average high for August is 74° with an average low of 52°. 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 Sedro-Woolley. See also: September | October | November.
