S
M
T
W
T
F
S
26
32°
26°
27
34°
28°
28
40°
28°
29
48°
26°
30
48°
24°
1
53°
28°
2
69°
27°
3
61°
39°
4
51°
35°
5
44°
23°
6
47°
17°
7
55°
34°
8
62°
39°
9
53°
37°
10
64°
34°
11
81°
40°
12
68°
40°
13
81°
36°
14
69°
41°
15
68°
37°
16
68°
43°
17
51°
37°
18
38°
26°
19
54°
36°
20
61°
38°
21
58°
39°
22
53°
37°
23
74°
48°
24
77°
48°
25
86°
50°
26
77°
49°
27
78°
49°
28
77°
48°
29
79°
50°
30
78°
49°
31
69°
44°
1
70°
49°
2
68°
49°
3
66°
48°
4
73°
50°
5
74°
50°
6
69°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Spokane
Spokane's May 2026 forecast shows daily high temperatures ranging from 38° to 86°, with overnight lows between 26° and 50°. The average high for May is 69° 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. See also: June | July | August.
