S
M
T
W
T
F
S
26
67°
48°
27
69°
47°
28
72°
47°
29
73°
48°
30
71°
49°
1
73°
41°
2
64°
46°
3
65°
42°
4
69°
50°
5
65°
48°
6
73°
49°
7
75°
49°
8
72°
46°
9
65°
43°
10
65°
43°
11
66°
44°
12
69°
49°
13
73°
50°
14
67°
46°
15
66°
44°
16
67°
47°
17
68°
46°
18
75°
51°
19
76°
52°
20
71°
54°
21
70°
55°
22
70°
52°
23
68°
51°
24
68°
49°
25
69°
47°
26
73°
48°
27
77°
53°
28
79°
56°
29
78°
54°
30
76°
51°
31
79°
53°
1
73°
51°
2
72°
55°
3
82°
58°
4
84°
54°
5
72°
55°
6
77°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dallesport
Dallesport's May 2026 forecast shows daily high temperatures ranging from 64° to 84°, with overnight lows between 41° and 58°. The average high for May is 72° with an average low of 49°. 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 Dallesport. See also: June | July | August.
