S
M
T
W
T
F
S
26
48°
28°
27
51°
24°
28
57°
25°
29
60°
35°
30
65°
30°
1
71°
30°
2
74°
38°
3
74°
37°
4
73°
36°
5
69°
36°
6
75°
35°
7
68°
38°
8
65°
31°
9
71°
31°
10
79°
35°
11
71°
33°
12
85°
36°
13
73°
41°
14
61°
38°
15
59°
33°
16
46°
33°
17
49°
31°
18
54°
31°
19
60°
29°
20
64°
32°
21
66°
31°
22
70°
34°
23
76°
37°
24
75°
37°
25
82°
37°
26
52°
44°
27
62°
50°
28
79°
47°
29
69°
42°
30
59°
35°
31
62°
38°
1
67°
41°
2
74°
44°
3
76°
45°
4
73°
43°
5
69°
43°
6
71°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wallowa Lake
Wallowa Lake's May 2026 forecast shows daily high temperatures ranging from 59° to 79°, with overnight lows between 35° and 50°. The average high for May is 69° with an average low of 43°. 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 Wallowa Lake. See also: June | July | August.
