S
M
T
W
T
F
S
26
81°
59°
27
79°
58°
28
75°
56°
29
71°
55°
30
71°
56°
31
75°
56°
1
79°
57°
2
80°
57°
3
73°
50°
4
72°
50°
5
76°
52°
6
78°
55°
7
72°
54°
8
74°
51°
9
72°
59°
10
79°
60°
11
81°
60°
12
82°
61°
13
82°
59°
14
81°
59°
15
81°
57°
16
80°
51°
17
79°
56°
18
76°
57°
19
71°
53°
20
71°
56°
21
72°
49°
22
70°
47°
23
70°
51°
24
73°
53°
25
77°
56°
26
78°
58°
27
79°
57°
28
80°
59°
29
79°
59°
30
78°
58°
31
78°
57°
1
77°
54°
2
76°
53°
3
75°
53°
4
74°
55°
5
70°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Steilacoom
Steilacoom's August 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 47° and 61°. The average high for August is 76° 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 Steilacoom. See also: September | October | November.
