S
M
T
W
T
F
S
26
74°
40°
27
68°
51°
28
62°
48°
29
76°
39°
30
81°
39°
1
85°
55°
2
85°
50°
3
90°
55°
4
85°
59°
5
82°
57°
6
82°
50°
7
81°
53°
8
73°
49°
9
80°
52°
10
83°
53°
11
79°
52°
12
78°
53°
13
76°
51°
14
84°
52°
15
76°
51°
16
73°
52°
17
72°
51°
18
70°
50°
19
70°
51°
20
72°
51°
21
71°
53°
22
70°
48°
23
75°
52°
24
79°
55°
25
80°
56°
26
81°
56°
27
79°
53°
28
77°
52°
29
78°
56°
30
79°
56°
31
73°
55°
1
72°
54°
2
76°
54°
3
76°
55°
4
73°
52°
5
75°
54°
6
78°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in The Dalles
The Dalles's May 2026 forecast shows daily high temperatures ranging from 70° to 90°, with overnight lows between 48° and 59°. The average high for May is 78° 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 May weather will actually feel in The Dalles. See also: June | July | August.
