S
M
T
W
T
F
S
26
80°
58°
27
83°
53°
28
83°
54°
29
82°
55°
30
83°
54°
31
89°
54°
1
77°
56°
2
74°
55°
3
84°
50°
4
91°
61°
5
91°
56°
6
95°
57°
7
92°
56°
8
92°
58°
9
87°
55°
10
84°
53°
11
85°
55°
12
81°
61°
13
83°
57°
14
81°
56°
15
75°
57°
16
82°
58°
17
85°
56°
18
87°
56°
19
88°
55°
20
93°
57°
21
79°
60°
22
78°
53°
23
80°
61°
24
93°
57°
25
87°
60°
26
82°
57°
27
79°
55°
28
78°
53°
29
75°
51°
30
79°
54°
31
78°
55°
1
73°
55°
2
70°
54°
3
75°
53°
4
76°
54°
5
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Wilsonville
Wilsonville's August 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 51° and 57°. The average high for August is 76° with an average low of 54°. 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 Wilsonville. See also: September | October | November.