S
M
T
W
T
F
S
26
60°
34°
27
63°
42°
28
63°
40°
29
70°
39°
30
73°
44°
1
72°
45°
2
74°
47°
3
75°
45°
4
74°
48°
5
69°
44°
6
65°
42°
7
66°
43°
8
68°
42°
9
69°
46°
10
67°
43°
11
63°
39°
12
65°
39°
13
70°
43°
14
73°
47°
15
74°
48°
16
75°
49°
17
64°
41°
18
69°
45°
19
74°
48°
20
74°
50°
21
72°
50°
22
65°
42°
23
65°
43°
24
69°
45°
25
75°
51°
26
76°
50°
27
75°
50°
28
66°
42°
29
70°
47°
30
73°
47°
31
67°
43°
1
67°
43°
2
70°
47°
3
77°
53°
4
78°
54°
5
77°
54°
6
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Spokane Valley
Spokane Valley's May 2026 forecast shows daily high temperatures ranging from 60° to 78°, with overnight lows between 34° and 54°. The average high for May is 70° with an average low of 45°. 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 Spokane Valley. See also: June | July | August.
