S
M
T
W
T
F
S
26
85°
59°
27
80°
58°
28
79°
55°
29
77°
54°
30
77°
53°
31
78°
55°
1
84°
57°
2
84°
56°
3
81°
52°
4
80°
51°
5
83°
55°
6
84°
54°
7
79°
52°
8
80°
53°
9
79°
58°
10
85°
60°
11
87°
60°
12
88°
59°
13
88°
57°
14
87°
56°
15
87°
54°
16
86°
50°
17
85°
54°
18
81°
55°
19
78°
50°
20
78°
50°
21
79°
52°
22
77°
48°
23
77°
51°
24
79°
53°
25
83°
57°
26
84°
56°
27
85°
54°
28
84°
57°
29
85°
57°
30
83°
56°
31
84°
57°
1
82°
52°
2
81°
51°
3
81°
52°
4
79°
54°
5
77°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Tualatin
Tualatin's August 2026 forecast shows daily high temperatures ranging from 77° to 88°, with overnight lows between 48° and 60°. The average high for August is 82° 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 Tualatin. See also: September | October | November.
