S
M
T
W
T
F
S
26
58°
37°
27
62°
37°
28
62°
39°
29
65°
39°
30
70°
40°
1
73°
41°
2
78°
49°
3
79°
49°
4
78°
50°
5
74°
49°
6
78°
48°
7
79°
45°
8
69°
45°
9
70°
38°
10
74°
46°
11
73°
40°
12
82°
46°
13
65°
45°
14
62°
41°
15
55°
38°
16
50°
37°
17
58°
31°
18
69°
39°
19
72°
42°
20
74°
47°
21
76°
49°
22
78°
51°
23
76°
43°
24
72°
43°
25
71°
39°
26
71°
44°
27
68°
43°
28
70°
44°
29
70°
41°
30
72°
46°
31
71°
45°
1
76°
50°
2
78°
51°
3
78°
52°
4
77°
51°
5
77°
51°
6
78°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ritzville
Ritzville's May 2026 forecast shows daily high temperatures ranging from 68° to 78°, with overnight lows between 39° and 52°. The average high for May is 74° with an average low of 46°. 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 Ritzville. See also: June | July | August.
