S
M
T
W
T
F
S
26
82°
54°
27
82°
54°
28
83°
53°
29
81°
52°
30
75°
50°
31
77°
52°
1
78°
52°
2
84°
57°
3
86°
58°
4
85°
57°
5
84°
58°
6
85°
58°
7
86°
57°
8
85°
57°
9
84°
56°
10
83°
53°
11
80°
53°
12
75°
52°
13
77°
53°
14
82°
54°
15
83°
57°
16
74°
54°
17
75°
54°
18
80°
53°
19
82°
54°
20
83°
55°
21
82°
53°
22
82°
52°
23
80°
51°
24
82°
55°
25
82°
55°
26
76°
54°
27
74°
48°
28
78°
48°
29
83°
51°
30
81°
47°
31
75°
48°
1
72°
44°
2
71°
48°
3
73°
49°
4
81°
46°
5
78°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Multnomah Falls
Multnomah Falls's August 2026 forecast shows daily high temperatures ranging from 71° to 86°, with overnight lows between 44° and 58°. The average high for August is 80° with an average low of 53°. 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 Multnomah Falls. See also: September | October | November.
